222615264 has 48 divisors (see below), whose sum is σ = 595404432. Its totient is φ = 72803328.

The previous prime is 222615233. The next prime is 222615269. The reversal of 222615264 is 462516222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222615269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16789 + ... + 26964.

It is an arithmetic number, because the mean of its divisors is an integer number (12404259).

Almost surely, 2^222615264 is an apocalyptic number.

222615264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222615264 is an abundant number, since it is smaller than the sum of its proper divisors (372789168).

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

222615264 is a wasteful number, since it uses less digits than its factorization.

222615264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43819 (or 43811 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 222615264 is about 14920.2970479813. The cubic root of 222615264 is about 606.0637561040.

The spelling of 222615264 in words is "two hundred twenty-two million, six hundred fifteen thousand, two hundred sixty-four".