222256748 has 18 divisors (see below), whose sum is σ = 452451636. Its totient is φ = 95252808.

The previous prime is 222256739. The next prime is 222256781. The reversal of 222256748 is 847652222.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566786 + ... + 567177.

It is an arithmetic number, because the mean of its divisors is an integer number (25136202).

Almost surely, 2^222256748 is an apocalyptic number.

222256748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222256748 is an abundant number, since it is smaller than the sum of its proper divisors (230194888).

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

222256748 is a wasteful number, since it uses less digits than its factorization.

222256748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133981 (or 1133972 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 222256748 is about 14908.2778348138. The cubic root of 222256748 is about 605.7382314039.

The spelling of 222256748 in words is "two hundred twenty-two million, two hundred fifty-six thousand, seven hundred forty-eight".