220947960 has 64 divisors (see below), whose sum is σ = 697737600. Its totient is φ = 55817856.

The previous prime is 220947949. The next prime is 220947971. The reversal of 220947960 is 69749022.

It is an interprime number because it is at equal distance from previous prime (220947949) and next prime (220947971).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46174 + ... + 50733.

It is an arithmetic number, because the mean of its divisors is an integer number (10902150).

Almost surely, 2^220947960 is an apocalyptic number.

220947960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220947960 is an abundant number, since it is smaller than the sum of its proper divisors (476789640).

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

220947960 is a wasteful number, since it uses less digits than its factorization.

220947960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96940 (or 96936 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 220947960 is about 14864.3183496587. The cubic root of 220947960 is about 604.5469002341.

The spelling of 220947960 in words is "two hundred twenty million, nine hundred forty-seven thousand, nine hundred sixty".