222394690 has 16 divisors (see below), whose sum is σ = 457497792. Its totient is φ = 76249584.

The previous prime is 222394687. The next prime is 222394691. The reversal of 222394690 is 96493222.

It is a super-2 number, since 2×222394690² = 98918796280392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222394691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588464 + ... + 1588603.

It is an arithmetic number, because the mean of its divisors is an integer number (28593612).

Almost surely, 2^222394690 is an apocalyptic number.

222394690 is an abundant number, since it is smaller than the sum of its proper divisors (235103102).

222394690 is a wasteful number, since it uses less digits than its factorization.

222394690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177081.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 222394690 is about 14912.9034731671. The cubic root of 222394690 is about 605.8635211323.

The spelling of 222394690 in words is "two hundred twenty-two million, three hundred ninety-four thousand, six hundred ninety".