16313720 has 16 divisors (see below), whose sum is σ = 36705960. Its totient is φ = 6525472.

The previous prime is 16313701. The next prime is 16313743. The reversal of 16313720 is 2731361.

It is a happy number.

It is a super-2 number, since 2×16313720² = 532274920476800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203882 + ... + 203961.

Almost surely, 2^16313720 is an apocalyptic number.

16313720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16313720 is an abundant number, since it is smaller than the sum of its proper divisors (20392240).

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

16313720 is a wasteful number, since it uses less digits than its factorization.

16313720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407854 (or 407850 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 16313720 is about 4039.0246347355. The cubic root of 16313720 is about 253.6204884812.

The spelling of 16313720 in words is "sixteen million, three hundred thirteen thousand, seven hundred twenty".