5312072440 has 64 divisors (see below), whose sum is σ = 12590899200. Its totient is φ = 2011448448.

The previous prime is 5312072431. The next prime is 5312072449. The reversal of 5312072440 is 442702135.

It is an interprime number because it is at equal distance from previous prime (5312072431) and next prime (5312072449).

It is a super-2 number, since 2×5312072440² = 56436227215615107200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5312072399 and 5312072408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312072449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675737 + ... + 1678903.

It is an arithmetic number, because the mean of its divisors is an integer number (196732800).

Almost surely, 2^5312072440 is an apocalyptic number.

It is an amenable number.

5312072440 is an abundant number, since it is smaller than the sum of its proper divisors (7278826760).

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

5312072440 is a wasteful number, since it uses less digits than its factorization.

5312072440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5400 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 5312072440 is about 72883.9655891472. The cubic root of 5312072440 is about 1744.8361999816.

Adding to 5312072440 its reverse (442702135), we get a palindrome (5754774575).

The spelling of 5312072440 in words is "five billion, three hundred twelve million, seventy-two thousand, four hundred forty".