222997936 has 80 divisors (see below), whose sum is σ = 518538240. Its totient is φ = 90881280.

The previous prime is 222997837. The next prime is 222997979. The reversal of 222997936 is 639799222.

222997936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222997936.

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, 230125 + ... + 231091.

It is an arithmetic number, because the mean of its divisors is an integer number (6481728).

Almost surely, 2^222997936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222997936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259269120).

222997936 is an abundant number, since it is smaller than the sum of its proper divisors (295540304).

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

222997936 is a wasteful number, since it uses less digits than its factorization.

222997936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1076 counting only the distinct ones).

The product of its digits is 734832, while the sum is 49.

The square root of 222997936 is about 14933.1154150767. The cubic root of 222997936 is about 606.4108285394.

The spelling of 222997936 in words is "two hundred twenty-two million, nine hundred ninety-seven thousand, nine hundred thirty-six".