15244002140 has 24 divisors (see below), whose sum is σ = 32490204432. Its totient is φ = 6006591360.

The previous prime is 15244002133. The next prime is 15244002167. The reversal of 15244002140 is 4120044251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5686721 + ... + 5689400.

It is an arithmetic number, because the mean of its divisors is an integer number (1353758518).

Almost surely, 2^15244002140 is an apocalyptic number.

15244002140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15244002140 is an abundant number, since it is smaller than the sum of its proper divisors (17246202292).

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

15244002140 is a wasteful number, since it uses less digits than its factorization.

15244002140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376197 (or 11376195 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 15244002140 its reverse (4120044251), we get a palindrome (19364046391).

The spelling of 15244002140 in words is "fifteen billion, two hundred forty-four million, two thousand, one hundred forty".