2315452840 has 16 divisors (see below), whose sum is σ = 5209768980. Its totient is φ = 926181120.

The previous prime is 2315452831. The next prime is 2315452847. The reversal of 2315452840 is 482545132.

It can be written as a sum of positive squares in 2 ways, for example, as 2304576036 + 10876804 = 48006^2 + 3298^2 .

It is a super-2 number, since 2×2315452840² = 10722643708528131200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2315452796 and 2315452805.

It is not an unprimeable number, because it can be changed into a prime (2315452847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28943121 + ... + 28943200.

Almost surely, 2^2315452840 is an apocalyptic number.

2315452840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315452840 is an abundant number, since it is smaller than the sum of its proper divisors (2894316140).

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

2315452840 is a wasteful number, since it uses less digits than its factorization.

2315452840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57886332 (or 57886328 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 2315452840 is about 48119.1525278657. The cubic root of 2315452840 is about 1322.9557350310.

Adding to 2315452840 its reverse (482545132), we get a palindrome (2797997972).

The spelling of 2315452840 in words is "two billion, three hundred fifteen million, four hundred fifty-two thousand, eight hundred forty".