16712320 has 32 divisors (see below), whose sum is σ = 39954420. Its totient is φ = 6684672.

The previous prime is 16712303. The next prime is 16712341. The reversal of 16712320 is 2321761.

It can be written as a sum of positive squares in 2 ways, for example, as 16711744 + 576 = 4088^2 + 24^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×16712320³ (a number of 23 digits) contains 333 as substring.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 16712291 and 16712300.

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, 12417 + ... + 13696.

Almost surely, 2^16712320 is an apocalyptic number.

16712320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16712320 is an abundant number, since it is smaller than the sum of its proper divisors (23242100).

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

16712320 is an equidigital number, since it uses as much as digits as its factorization.

16712320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26132 (or 26120 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16712320 is about 4088.0704494908. The cubic root of 16712320 is about 255.6694953660.

It can be divided in two parts, 1671 and 2320, that multiplied together give a triangular number (3876720 = T₂₇₈₄).

The spelling of 16712320 in words is "sixteen million, seven hundred twelve thousand, three hundred twenty".