23047530 has 64 divisors (see below), whose sum is σ = 60811776. Its totient is φ = 5544000.

The previous prime is 23047511. The next prime is 23047543. The reversal of 23047530 is 3574032.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23047530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69465 + ... + 69795.

It is an arithmetic number, because the mean of its divisors is an integer number (950184).

Almost surely, 2^23047530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23047530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30405888).

23047530 is an abundant number, since it is smaller than the sum of its proper divisors (37764246).

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

23047530 is a wasteful number, since it uses less digits than its factorization.

23047530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 23047530 is about 4800.7843109225. The cubic root of 23047530 is about 284.5824602959.

The spelling of 23047530 in words is "twenty-three million, forty-seven thousand, five hundred thirty".