1340333340 has 96 divisors (see below), whose sum is σ = 3958590720. Its totient is φ = 337913856.

The previous prime is 1340333311. The next prime is 1340333353. The reversal of 1340333340 is 433330431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340333340.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 766347 + ... + 768093.

It is an arithmetic number, because the mean of its divisors is an integer number (41235320).

Almost surely, 2^1340333340 is an apocalyptic number.

1340333340 is a gapful number since it is divisible by the number (10) 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 1340333340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979295360).

1340333340 is an abundant number, since it is smaller than the sum of its proper divisors (2618257380).

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

1340333340 is a wasteful number, since it uses less digits than its factorization.

1340333340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2449 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

The square root of 1340333340 is about 36610.5632297565. The cubic root of 1340333340 is about 1102.5651814343.

Adding to 1340333340 its reverse (433330431), we get a palindrome (1773663771).

The spelling of 1340333340 in words is "one billion, three hundred forty million, three hundred thirty-three thousand, three hundred forty".