15489488 has 60 divisors (see below), whose sum is σ = 36470880. Its totient is φ = 6342336.

The previous prime is 15489479. The next prime is 15489493. The reversal of 15489488 is 88498451.

It is a happy number.

15489488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-5 number, since 5×15489488⁵ (a number of 37 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17603 + ... + 18461.

It is an arithmetic number, because the mean of its divisors is an integer number (607848).

Almost surely, 2^15489488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15489488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18235440).

15489488 is an abundant number, since it is smaller than the sum of its proper divisors (20981392).

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

15489488 is a wasteful number, since it uses less digits than its factorization.

15489488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 891 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 15489488 is about 3935.6686852427. The cubic root of 15489488 is about 249.2751698493.

The spelling of 15489488 in words is "fifteen million, four hundred eighty-nine thousand, four hundred eighty-eight".