222023538 has 32 divisors (see below), whose sum is σ = 538240320. Its totient is φ = 67279680.

The previous prime is 222023537. The next prime is 222023551. The reversal of 222023538 is 835320222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (222023537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186295 + ... + 187482.

It is an arithmetic number, because the mean of its divisors is an integer number (16820010).

Almost surely, 2^222023538 is an apocalyptic number.

222023538 is an abundant number, since it is smaller than the sum of its proper divisors (316216782).

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

222023538 is a wasteful number, since it uses less digits than its factorization.

222023538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373799 (or 373793 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 222023538 is about 14900.4542883766. The cubic root of 222023538 is about 605.5262938561.

The spelling of 222023538 in words is "two hundred twenty-two million, twenty-three thousand, five hundred thirty-eight".