23065405 has 16 divisors (see below), whose sum is σ = 30326400. Its totient is φ = 16701760.

The previous prime is 23065397. The next prime is 23065421. The reversal of 23065405 is 50456032.

It is not a de Polignac number, because 23065405 - 2³ = 23065397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23065405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14016 + ... + 15574.

It is an arithmetic number, because the mean of its divisors is an integer number (1895400).

Almost surely, 2^23065405 is an apocalyptic number.

It is an amenable number.

23065405 is a deficient number, since it is larger than the sum of its proper divisors (7260995).

23065405 is a wasteful number, since it uses less digits than its factorization.

23065405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 23065405 is about 4802.6456250696. The cubic root of 23065405 is about 284.6560126022.

The spelling of 23065405 in words is "twenty-three million, sixty-five thousand, four hundred five".