23837472 has 72 divisors (see below), whose sum is σ = 69651036. Its totient is φ = 7727616.

The previous prime is 23837447. The next prime is 23837479. The reversal of 23837472 is 27473832.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 3370896 = 4524^2 + 1836^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23837479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9538 + ... + 11774.

Almost surely, 2^23837472 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 23837472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34825518).

23837472 is an abundant number, since it is smaller than the sum of its proper divisors (45813564).

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

23837472 is a wasteful number, since it uses less digits than its factorization.

23837472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2279 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 23837472 is about 4882.3633621434. The cubic root of 23837472 is about 287.7973110886.

The spelling of 23837472 in words is "twenty-three million, eight hundred thirty-seven thousand, four hundred seventy-two".