220387264 has 28 divisors (see below), whose sum is σ = 438143904. Its totient is φ = 109988864.

The previous prime is 220387253. The next prime is 220387273. The reversal of 220387264 is 462783022.

It is a super-2 number, since 2×220387264² = 97141092266811392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35049 + ... + 40855.

Almost surely, 2^220387264 is an apocalyptic number.

It is an amenable number.

220387264 is a deficient number, since it is larger than the sum of its proper divisors (217756640).

220387264 is an equidigital number, since it uses as much as digits as its factorization.

220387264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6402 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 220387264 is about 14845.4459010162. The cubic root of 220387264 is about 604.0350841425.

The spelling of 220387264 in words is "two hundred twenty million, three hundred eighty-seven thousand, two hundred sixty-four".