222890 has 16 divisors (see below), whose sum is σ = 414720. Its totient is φ = 86160.

The previous prime is 222883. The next prime is 222913. The reversal of 222890 is 98222.

It is an Ulam number.

It is a plaindrome in base 16.

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, 50 + ... + 669.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2²²²⁸⁹⁰ is an apocalyptic number.

222890 is a deficient number, since it is larger than the sum of its proper divisors (191830).

222890 is a wasteful number, since it uses less digits than its factorization.

222890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 222890 is about 472.1122747822. The cubic root of 222890 is about 60.6312973938.

The spelling of 222890 in words is "two hundred twenty-two thousand, eight hundred ninety".