23047520 has 48 divisors (see below), whose sum is σ = 54749520. Its totient is φ = 9168384.

The previous prime is 23047511. The next prime is 23047543. The reversal of 23047520 is 2574032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45026 + ... + 45534.

It is an arithmetic number, because the mean of its divisors is an integer number (1140615).

Almost surely, 2^23047520 is an apocalyptic number.

23047520 is a gapful number since it is divisible by the number (20) 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 23047520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27374760).

23047520 is an abundant number, since it is smaller than the sum of its proper divisors (31702000).

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

23047520 is a wasteful number, since it uses less digits than its factorization.

23047520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23047520 is about 4800.7832694259. The cubic root of 23047520 is about 284.5824191371.

The spelling of 23047520 in words is "twenty-three million, forty-seven thousand, five hundred twenty".