222634390 has 32 divisors (see below), whose sum is σ = 442104480. Its totient is φ = 80044800.

The previous prime is 222634361. The next prime is 222634427. The reversal of 222634390 is 93436222.

It is a super-2 number, since 2×222634390² = 99132143221344200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581 + ... + 21160.

It is an arithmetic number, because the mean of its divisors is an integer number (13815765).

Almost surely, 2^222634390 is an apocalyptic number.

222634390 is a deficient number, since it is larger than the sum of its proper divisors (219470090).

222634390 is a wasteful number, since it uses less digits than its factorization.

222634390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22848.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 222634390 is about 14920.9379731973. The cubic root of 222634390 is about 606.0811122716.

The spelling of 222634390 in words is "two hundred twenty-two million, six hundred thirty-four thousand, three hundred ninety".