23447232 has 70 divisors (see below), whose sum is σ = 69520308. Its totient is φ = 7814016.

The previous prime is 23447201. The next prime is 23447257. The reversal of 23447232 is 23274432.

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 = 23447196 and 23447205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2923 + ... + 7445.

Almost surely, 2^23447232 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 23447232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34760154).

23447232 is an abundant number, since it is smaller than the sum of its proper divisors (46073076).

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

23447232 is an equidigital number, since it uses as much as digits as its factorization.

23447232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4528 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 23447232 is about 4842.2341950798. The cubic root of 23447232 is about 286.2181653225.

The spelling of 23447232 in words is "twenty-three million, four hundred forty-seven thousand, two hundred thirty-two".