222678872 has 32 divisors (see below), whose sum is σ = 460615680. Its totient is φ = 100266240.

The previous prime is 222678857. The next prime is 222678887. The reversal of 222678872 is 278876222.

It is an interprime number because it is at equal distance from previous prime (222678857) and next prime (222678887).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21848 + ... + 30375.

It is an arithmetic number, because the mean of its divisors is an integer number (14394240).

Almost surely, 2^222678872 is an apocalyptic number.

It is an amenable number.

222678872 is an abundant number, since it is smaller than the sum of its proper divisors (237936808).

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

222678872 is a wasteful number, since it uses less digits than its factorization.

222678872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52283 (or 52279 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 222678872 is about 14922.4284886878. The cubic root of 222678872 is about 606.1214742671.

The spelling of 222678872 in words is "two hundred twenty-two million, six hundred seventy-eight thousand, eight hundred seventy-two".