15216480 has 72 divisors (see below), whose sum is σ = 51931152. Its totient is φ = 4057344.

The previous prime is 15216463. The next prime is 15216493. The reversal of 15216480 is 8461251.

15216480 is a `hidden beast` number, since 1 + 521 + 64 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3844 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (721266).

Almost surely, 2^15216480 is an apocalyptic number.

15216480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15216480 is an abundant number, since it is smaller than the sum of its proper divisors (36714672).

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

15216480 is a wasteful number, since it uses less digits than its factorization.

15216480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588 (or 10577 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 15216480 is about 3900.8306807653. The cubic root of 15216480 is about 247.8019577455.

It can be divided in two parts, 1521 and 6480, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 15216480 in words is "fifteen million, two hundred sixteen thousand, four hundred eighty".