222473290 has 24 divisors (see below), whose sum is σ = 433628748. Its totient is φ = 82143360.

The previous prime is 222473281. The next prime is 222473291. The reversal of 222473290 is 92374222.

It can be written as a sum of positive squares in 6 ways, for example, as 11148921 + 211324369 = 3339^2 + 14537^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (222473291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64131 + ... + 67510.

Almost surely, 2^222473290 is an apocalyptic number.

222473290 is a deficient number, since it is larger than the sum of its proper divisors (211155458).

222473290 is a wasteful number, since it uses less digits than its factorization.

222473290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131674 (or 131661 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 222473290 is about 14915.5385420708. The cubic root of 222473290 is about 605.9348886392.

The spelling of 222473290 in words is "two hundred twenty-two million, four hundred seventy-three thousand, two hundred ninety".