23391630 has 24 divisors (see below), whose sum is σ = 60818472. Its totient is φ = 6237744.

The previous prime is 23391619. The next prime is 23391649. The reversal of 23391630 is 3619332.

23391630 is a `hidden beast` number, since 23 + 3 + 9 + 1 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23391594 and 23391603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129864 + ... + 130043.

It is an arithmetic number, because the mean of its divisors is an integer number (2534103).

Almost surely, 2^23391630 is an apocalyptic number.

23391630 is an abundant number, since it is smaller than the sum of its proper divisors (37426842).

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

23391630 is a wasteful number, since it uses less digits than its factorization.

23391630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259920 (or 259917 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 23391630 is about 4836.4894293278. The cubic root of 23391630 is about 285.9917434492.

It can be divided in two parts, 2339 and 1630, that added together give a square (3969 = 63²).

The spelling of 23391630 in words is "twenty-three million, three hundred ninety-one thousand, six hundred thirty".