15288972 has 24 divisors (see below), whose sum is σ = 35740992. Its totient is φ = 5086800.

The previous prime is 15288961. The next prime is 15288989. The reversal of 15288972 is 27988251.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8947 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (1489208).

Almost surely, 2^15288972 is an apocalyptic number.

15288972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15288972 is an abundant number, since it is smaller than the sum of its proper divisors (20452020).

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

15288972 is a wasteful number, since it uses less digits than its factorization.

15288972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389 (or 2387 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 15288972 is about 3910.1115073614. Note that the first 3 decimals coincide. The cubic root of 15288972 is about 248.1948477398.

The spelling of 15288972 in words is "fifteen million, two hundred eighty-eight thousand, nine hundred seventy-two".