23420631 has 8 divisors (see below), whose sum is σ = 33629680. Its totient is φ = 14412672.

The previous prime is 23420629. The next prime is 23420641. The reversal of 23420631 is 13602432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23420631 - 2¹ = 23420629 is a prime.

It is a super-2 number, since 2×23420631² = 1097051912876322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23420598 and 23420607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420641) 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, 300226 + ... + 300303.

It is an arithmetic number, because the mean of its divisors is an integer number (4203710).

Almost surely, 2^23420631 is an apocalyptic number.

23420631 is a deficient number, since it is larger than the sum of its proper divisors (10209049).

23420631 is a wasteful number, since it uses less digits than its factorization.

23420631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600545.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23420631 is about 4839.4866463293. The cubic root of 23420631 is about 286.1098857256.

The spelling of 23420631 in words is "twenty-three million, four hundred twenty thousand, six hundred thirty-one".