15445340232 has 32 divisors (see below), whose sum is σ = 44129544000. Its totient is φ = 4412954304.

The previous prime is 15445340203. The next prime is 15445340233. The reversal of 15445340232 is 23204354451.

It is a junction number, because it is equal to n+sod(n) for n = 15445340193 and 15445340202.

It is not an unprimeable number, because it can be changed into a prime (15445340233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45968107 + ... + 45968442.

It is an arithmetic number, because the mean of its divisors is an integer number (1379048250).

Almost surely, 2^15445340232 is an apocalyptic number.

15445340232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15445340232 is an abundant number, since it is smaller than the sum of its proper divisors (28684203768).

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

15445340232 is a wasteful number, since it uses less digits than its factorization.

15445340232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91936565 (or 91936561 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 15445340232 its reverse (23204354451), we get a palindrome (38649694683).

The spelling of 15445340232 in words is "fifteen billion, four hundred forty-five million, three hundred forty thousand, two hundred thirty-two".