320064216 has 32 divisors (see below), whose sum is σ = 800625600. Its totient is φ = 106626080.

The previous prime is 320064211. The next prime is 320064233. The reversal of 320064216 is 612460023.

It is a super-2 number, since 2×320064216² = 204882204727389312, 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 not an unprimeable number, because it can be changed into a prime (320064211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59311 + ... + 64481.

It is an arithmetic number, because the mean of its divisors is an integer number (25019550).

Almost surely, 2^320064216 is an apocalyptic number.

It is an amenable number.

320064216 is an abundant number, since it is smaller than the sum of its proper divisors (480561384).

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

320064216 is a wasteful number, since it uses less digits than its factorization.

320064216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759 (or 7755 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 320064216 is about 17890.3386217254. The cubic root of 320064216 is about 684.0361288669.

The spelling of 320064216 in words is "three hundred twenty million, sixty-four thousand, two hundred sixteen".