216572960 has 24 divisors (see below), whose sum is σ = 511653996. Its totient is φ = 86629120.

The previous prime is 216572959. The next prime is 216572971. The reversal of 216572960 is 69275612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 210946576 + 5626384 = 14524^2 + 2372^2 .

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, 676631 + ... + 676950.

Almost surely, 2^216572960 is an apocalyptic number.

216572960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216572960 is an abundant number, since it is smaller than the sum of its proper divisors (295081036).

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

216572960 is a wasteful number, since it uses less digits than its factorization.

216572960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353596 (or 1353588 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 216572960 is about 14716.4180424450. The cubic root of 216572960 is about 600.5300501254.

The spelling of 216572960 in words is "two hundred sixteen million, five hundred seventy-two thousand, nine hundred sixty".