222890688 has 42 divisors (see below), whose sum is σ = 638877564. Its totient is φ = 74296704.

The previous prime is 222890687. The next prime is 222890693. The reversal of 222890688 is 886098222.

It is a super-2 number, since 2×222890688² = 99360517594226688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222890687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192906 + ... + 194057.

Almost surely, 2^222890688 is an apocalyptic number.

It is an amenable number.

222890688 is an abundant number, since it is smaller than the sum of its proper divisors (415986876).

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

222890688 is a wasteful number, since it uses less digits than its factorization.

222890688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386981 (or 386968 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 222890688 is about 14929.5240379591. The cubic root of 222890688 is about 606.3135977778.

The spelling of 222890688 in words is "two hundred twenty-two million, eight hundred ninety thousand, six hundred eighty-eight".