15480072 has 48 divisors (see below), whose sum is σ = 43483440. Its totient is φ = 5159376.

The previous prime is 15480053. The next prime is 15480103. The reversal of 15480072 is 27008451.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2038 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (905905).

Almost surely, 2^15480072 is an apocalyptic number.

15480072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15480072 is an abundant number, since it is smaller than the sum of its proper divisors (28003368).

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

15480072 is an equidigital number, since it uses as much as digits as its factorization.

15480072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984 (or 7968 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 15480072 is about 3934.4722644848. The cubic root of 15480072 is about 249.2246484727.

The spelling of 15480072 in words is "fifteen million, four hundred eighty thousand, seventy-two".