23423634 has 64 divisors (see below), whose sum is σ = 57079680. Its totient is φ = 7076160.

The previous prime is 23423623. The next prime is 23423663. The reversal of 23423634 is 43632432.

It is a happy number.

23423634 is a `hidden beast` number, since 2 + 3 + 4 + 23 + 634 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23423598 and 23423607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42549 + ... + 43095.

It is an arithmetic number, because the mean of its divisors is an integer number (891870).

Almost surely, 2^23423634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23423634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28539840).

23423634 is an abundant number, since it is smaller than the sum of its proper divisors (33656046).

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

23423634 is a wasteful number, since it uses less digits than its factorization.

23423634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 626 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 23423634 is about 4839.7968965650. The cubic root of 23423634 is about 286.1221135668.

It can be divided in two parts, 234236 and 34, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 23423634 in words is "twenty-three million, four hundred twenty-three thousand, six hundred thirty-four".