23401166 has 16 divisors (see below), whose sum is σ = 36816768. Its totient is φ = 11134200.

The previous prime is 23401151. The next prime is 23401171. The reversal of 23401166 is 66110432.

It is a happy number.

It is a super-2 number, since 2×23401166² = 1095229140319112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8501 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (2301048).

Almost surely, 2^23401166 is an apocalyptic number.

23401166 is a deficient number, since it is larger than the sum of its proper divisors (13415602).

23401166 is a wasteful number, since it uses less digits than its factorization.

23401166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23401166 is about 4837.4751678949. The cubic root of 23401166 is about 286.0306013192.

Adding to 23401166 its reverse (66110432), we get a palindrome (89511598).

The spelling of 23401166 in words is "twenty-three million, four hundred one thousand, one hundred sixty-six".