16312920 has 64 divisors (see below), whose sum is σ = 52708320. Its totient is φ = 4015104.

The previous prime is 16312909. The next prime is 16312931. The reversal of 16312920 is 2921361.

It is an interprime number because it is at equal distance from previous prime (16312909) and next prime (16312931).

It is a super-2 number, since 2×16312920² = 532222717852800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3669 + ... + 6788.

Almost surely, 2^16312920 is an apocalyptic number.

16312920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16312920 is an abundant number, since it is smaller than the sum of its proper divisors (36395400).

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

16312920 is a wasteful number, since it uses less digits than its factorization.

16312920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484 (or 10480 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16312920 is about 4038.9255997109. The cubic root of 16312920 is about 253.6163426926.

The spelling of 16312920 in words is "sixteen million, three hundred twelve thousand, nine hundred twenty".