23966020 has 24 divisors (see below), whose sum is σ = 54200664. Its totient is φ = 8848896.

The previous prime is 23965999. The next prime is 23966027. The reversal of 23966020 is 2066932.

It can be written as a sum of positive squares in 4 ways, for example, as 617796 + 23348224 = 786^2 + 4832^2 .

It is a super-2 number, since 2×23966020² = 1148740229280800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23966020.

It is not an unprimeable number, because it can be changed into a prime (23966027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45829 + ... + 46348.

It is an arithmetic number, because the mean of its divisors is an integer number (2258361).

Almost surely, 2^23966020 is an apocalyptic number.

23966020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23966020 is an abundant number, since it is smaller than the sum of its proper divisors (30234644).

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

23966020 is a wasteful number, since it uses less digits than its factorization.

23966020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92199 (or 92197 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23966020 is about 4895.5101879171. The cubic root of 23966020 is about 288.3137174296.

The spelling of 23966020 in words is "twenty-three million, nine hundred sixty-six thousand, twenty".