23405275 has 12 divisors (see below), whose sum is σ = 29808112. Its totient is φ = 18217440.

The previous prime is 23405257. The next prime is 23405281. The reversal of 23405275 is 57250432.

It is not a de Polignac number, because 23405275 - 2⁷ = 23405147 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 in 11 ways as a sum of consecutive naturals, for example, 11727 + ... + 13576.

Almost surely, 2^23405275 is an apocalyptic number.

23405275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23405275 is a deficient number, since it is larger than the sum of its proper divisors (6402837).

23405275 is a wasteful number, since it uses less digits than its factorization.

23405275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25350 (or 25345 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 23405275 is about 4837.8998542756. The cubic root of 23405275 is about 286.0473416667.

The spelling of 23405275 in words is "twenty-three million, four hundred five thousand, two hundred seventy-five".