23459421 has 16 divisors (see below), whose sum is σ = 32417280. Its totient is φ = 15079680.

The previous prime is 23459413. The next prime is 23459437. The reversal of 23459421 is 12495432.

It is not a de Polignac number, because 23459421 - 2³ = 23459413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23459461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9876 + ... + 12018.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 2^23459421 is an apocalyptic number.

It is an amenable number.

23459421 is a deficient number, since it is larger than the sum of its proper divisors (8957859).

23459421 is a wasteful number, since it uses less digits than its factorization.

23459421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276.

The product of its digits is 8640, while the sum is 30.

The square root of 23459421 is about 4843.4926447761. The cubic root of 23459421 is about 286.2677533913.

The spelling of 23459421 in words is "twenty-three million, four hundred fifty-nine thousand, four hundred twenty-one".