1315264340 has 24 divisors (see below), whose sum is σ = 2974521480. Its totient is φ = 485635968.

The previous prime is 1315264333. The next prime is 1315264387. The reversal of 1315264340 is 434625131.

It can be written as a sum of positive squares in 4 ways, for example, as 5692996 + 1309571344 = 2386^2 + 36188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529095 + ... + 2529614.

It is an arithmetic number, because the mean of its divisors is an integer number (123938395).

Almost surely, 2^1315264340 is an apocalyptic number.

1315264340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315264340 is an abundant number, since it is smaller than the sum of its proper divisors (1659257140).

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

1315264340 is a wasteful number, since it uses less digits than its factorization.

1315264340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058731 (or 5058729 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1315264340 is about 36266.5733148308. The cubic root of 1315264340 is about 1095.6479113504.

Adding to 1315264340 its reverse (434625131), we get a palindrome (1749889471).

The spelling of 1315264340 in words is "one billion, three hundred fifteen million, two hundred sixty-four thousand, three hundred forty".