1340603264 has 128 divisors (see below), whose sum is σ = 3586222080. Its totient is φ = 482088960.

The previous prime is 1340603263. The next prime is 1340603269. The reversal of 1340603264 is 4623060431.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1340603264² = 3594434222894907392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340603263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122897 + ... + 133359.

It is an arithmetic number, because the mean of its divisors is an integer number (28017360).

Almost surely, 2^1340603264 is an apocalyptic number.

1340603264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340603264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793111040).

1340603264 is an abundant number, since it is smaller than the sum of its proper divisors (2245618816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340603264 is a wasteful number, since it uses less digits than its factorization.

1340603264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508 (or 10496 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 1340603264 is about 36614.2494665670. The cubic root of 1340603264 is about 1102.6391900955.

Adding to 1340603264 its reverse (4623060431), we get a palindrome (5963663695).

The spelling of 1340603264 in words is "one billion, three hundred forty million, six hundred three thousand, two hundred sixty-four".