23666404 has 6 divisors (see below), whose sum is σ = 41416214. Its totient is φ = 11833200.

The previous prime is 23666387. The next prime is 23666411. The reversal of 23666404 is 40466632.

It can be written as a sum of positive squares in only one way, i.e., 14424804 + 9241600 = 3798^2 + 3040^2 .

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, 2958297 + ... + 2958304.

Almost surely, 2^23666404 is an apocalyptic number.

It is an amenable number.

23666404 is a deficient number, since it is larger than the sum of its proper divisors (17749810).

23666404 is a wasteful number, since it uses less digits than its factorization.

23666404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916605 (or 5916603 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 23666404 is about 4864.8128432654. The cubic root of 23666404 is about 287.1072049896.

The spelling of 23666404 in words is "twenty-three million, six hundred sixty-six thousand, four hundred four".