23040747 has 16 divisors (see below), whose sum is σ = 34452000. Its totient is φ = 15217632.

The previous prime is 23040713. The next prime is 23040767. The reversal of 23040747 is 74704032.

It is not a de Polignac number, because 23040747 - 2⁶ = 23040683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23040747.

It is not an unprimeable number, because it can be changed into a prime (23040767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (2153250).

Almost surely, 2^23040747 is an apocalyptic number.

23040747 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23040747 is a deficient number, since it is larger than the sum of its proper divisors (11411253).

23040747 is a wasteful number, since it uses less digits than its factorization.

23040747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947 (or 7941 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 23040747 is about 4800.0778118693. The cubic root of 23040747 is about 284.5545395566.

Adding to 23040747 its reverse (74704032), we get a palindrome (97744779).

The spelling of 23040747 in words is "twenty-three million, forty thousand, seven hundred forty-seven".