2315440432 has 10 divisors (see below), whose sum is σ = 4486165868. Its totient is φ = 1157720208.

The previous prime is 2315440403. The next prime is 2315440441. The reversal of 2315440432 is 2340445132.

It is a happy number.

It is a super-2 number, since 2×2315440432² = 10722528788280693248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2315440432.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72357498 + ... + 72357529.

Almost surely, 2^2315440432 is an apocalyptic number.

It is an amenable number.

2315440432 is a deficient number, since it is larger than the sum of its proper divisors (2170725436).

2315440432 is a wasteful number, since it uses less digits than its factorization.

2315440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144715035 (or 144715029 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2315440432 is about 48119.0235977415. The cubic root of 2315440432 is about 1322.9533718843.

Adding to 2315440432 its reverse (2340445132), we get a palindrome (4655885564).

The spelling of 2315440432 in words is "two billion, three hundred fifteen million, four hundred forty thousand, four hundred thirty-two".