222948780 has 24 divisors (see below), whose sum is σ = 624256752. Its totient is φ = 59452992.

The previous prime is 222948779. The next prime is 222948797. The reversal of 222948780 is 87849222.

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, 1857847 + ... + 1857966.

It is an arithmetic number, because the mean of its divisors is an integer number (26010698).

Almost surely, 2^222948780 is an apocalyptic number.

222948780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222948780 is an abundant number, since it is smaller than the sum of its proper divisors (401307972).

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

222948780 is a wasteful number, since it uses less digits than its factorization.

222948780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715825 (or 3715823 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 222948780 is about 14931.4694521336. The cubic root of 222948780 is about 606.3662677066.

The spelling of 222948780 in words is "two hundred twenty-two million, nine hundred forty-eight thousand, seven hundred eighty".