23451472 has 40 divisors (see below), whose sum is σ = 52184160. Its totient is φ = 10097280.

The previous prime is 23451457. The next prime is 23451479. The reversal of 23451472 is 27415432.

It is a self number, because there is not a number n which added to its sum of digits gives 23451472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451479) 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 7 ways as a sum of consecutive naturals, for example, 163 + ... + 6850.

It is an arithmetic number, because the mean of its divisors is an integer number (1304604).

Almost surely, 2^23451472 is an apocalyptic number.

23451472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23451472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26092080).

23451472 is an abundant number, since it is smaller than the sum of its proper divisors (28732688).

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

23451472 is a wasteful number, since it uses less digits than its factorization.

23451472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051 (or 7045 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 23451472 is about 4842.6719897181. The cubic root of 23451472 is about 286.2354167103.

The spelling of 23451472 in words is "twenty-three million, four hundred fifty-one thousand, four hundred seventy-two".