222958644 has 24 divisors (see below), whose sum is σ = 527365440. Its totient is φ = 73301184.

The previous prime is 222958613. The next prime is 222958663. The reversal of 222958644 is 446859222.

It is a junction number, because it is equal to n+sod(n) for n = 222958596 and 222958605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126384 + ... + 128135.

It is an arithmetic number, because the mean of its divisors is an integer number (21973560).

Almost surely, 2^222958644 is an apocalyptic number.

It is an amenable number.

222958644 is an abundant number, since it is smaller than the sum of its proper divisors (304406796).

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

222958644 is a wasteful number, since it uses less digits than its factorization.

222958644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254599 (or 254597 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 222958644 is about 14931.7997575644. The cubic root of 222958644 is about 606.3752101322.

The spelling of 222958644 in words is "two hundred twenty-two million, nine hundred fifty-eight thousand, six hundred forty-four".