23706432 has 140 divisors (see below), whose sum is σ = 74683620. Its totient is φ = 7409664.

The previous prime is 23706401. The next prime is 23706457. The reversal of 23706432 is 23460732.

It can be written as a sum of positive squares in 2 ways, for example, as 9144576 + 14561856 = 3024^2 + 3816^2 .

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 = 23706396 and 23706405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87994 + ... + 88262.

Almost surely, 2^23706432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23706432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37341810).

23706432 is an abundant number, since it is smaller than the sum of its proper divisors (50977188).

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

23706432 is a wasteful number, since it uses less digits than its factorization.

23706432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 23706432 is about 4868.9251380567. The cubic root of 23706432 is about 287.2689793784.

The spelling of 23706432 in words is "twenty-three million, seven hundred six thousand, four hundred thirty-two".