23875220 has 12 divisors (see below), whose sum is σ = 50138004. Its totient is φ = 9550080.

The previous prime is 23875169. The next prime is 23875237. The reversal of 23875220 is 2257832.

It can be written as a sum of positive squares in 2 ways, for example, as 14227984 + 9647236 = 3772^2 + 3106^2 .

It is a super-2 number, since 2×23875220² = 1140052260096800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596861 + ... + 596900.

It is an arithmetic number, because the mean of its divisors is an integer number (4178167).

Almost surely, 2^23875220 is an apocalyptic number.

23875220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23875220 is an abundant number, since it is smaller than the sum of its proper divisors (26262784).

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

23875220 is a wasteful number, since it uses less digits than its factorization.

23875220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193770 (or 1193768 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 23875220 is about 4886.2275837296. The cubic root of 23875220 is about 287.9491454703.

The spelling of 23875220 in words is "twenty-three million, eight hundred seventy-five thousand, two hundred twenty".