15244944340 has 12 divisors (see below), whose sum is σ = 32014383156. Its totient is φ = 6097977728.

The previous prime is 15244944311. The next prime is 15244944359. The reversal of 15244944340 is 4344944251.

It can be written as a sum of positive squares in 2 ways, for example, as 6713835844 + 8531108496 = 81938^2 + 92364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15244944293 and 15244944302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381123589 + ... + 381123628.

It is an arithmetic number, because the mean of its divisors is an integer number (2667865263).

Almost surely, 2^15244944340 is an apocalyptic number.

15244944340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15244944340 is an abundant number, since it is smaller than the sum of its proper divisors (16769438816).

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

15244944340 is a wasteful number, since it uses less digits than its factorization.

15244944340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762247226 (or 762247224 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 15244944340 in words is "fifteen billion, two hundred forty-four million, nine hundred forty-four thousand, three hundred forty".