223290664 has 8 divisors (see below), whose sum is σ = 418670010. Its totient is φ = 111645328.

The previous prime is 223290659. The next prime is 223290673. The reversal of 223290664 is 466092322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 214036900 + 9253764 = 14630^2 + 3042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×223290664³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13955659 + ... + 13955674.

Almost surely, 2^223290664 is an apocalyptic number.

It is an amenable number.

223290664 is a deficient number, since it is larger than the sum of its proper divisors (195379346).

223290664 is a wasteful number, since it uses less digits than its factorization.

223290664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27911339 (or 27911335 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 223290664 is about 14942.9135044007. The cubic root of 223290664 is about 606.6760564233.

The spelling of 223290664 in words is "two hundred twenty-three million, two hundred ninety thousand, six hundred sixty-four".