15485988 has 96 divisors (see below), whose sum is σ = 45015040. Its totient is φ = 4043520.

The previous prime is 15485959. The next prime is 15485989. The reversal of 15485988 is 88958451.

It is a super-2 number, since 2×15485988² = 479631648672288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15485989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49320 + ... + 49632.

Almost surely, 2^15485988 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 15485988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22507520).

15485988 is an abundant number, since it is smaller than the sum of its proper divisors (29529052).

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

15485988 is a wasteful number, since it uses less digits than its factorization.

15485988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its digits is 460800, while the sum is 48.

The square root of 15485988 is about 3935.2240088717. The cubic root of 15485988 is about 249.2563930545.

The spelling of 15485988 in words is "fifteen million, four hundred eighty-five thousand, nine hundred eighty-eight".