15720416 has 24 divisors (see below), whose sum is σ = 31240440. Its totient is φ = 7786368.

The previous prime is 15720409. The next prime is 15720421. The reversal of 15720416 is 61402751.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (1301685).

Almost surely, 2^15720416 is an apocalyptic number.

15720416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15720416 is a deficient number, since it is larger than the sum of its proper divisors (15520024).

15720416 is a wasteful number, since it uses less digits than its factorization.

15720416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626 (or 4618 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 15720416 is about 3964.8979810331. The cubic root of 15720416 is about 250.5078529762.

The spelling of 15720416 in words is "fifteen million, seven hundred twenty thousand, four hundred sixteen".