23012444040 has 64 divisors (see below), whose sum is σ = 69911251200. Its totient is φ = 6058970112.

The previous prime is 23012444033. The next prime is 23012444051. The reversal of 23012444040 is 4044421032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23012444040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1204257 + ... + 1223216.

It is an arithmetic number, because the mean of its divisors is an integer number (1092363300).

Almost surely, 2^23012444040 is an apocalyptic number.

23012444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012444040 is an abundant number, since it is smaller than the sum of its proper divisors (46898807160).

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

23012444040 is a wasteful number, since it uses less digits than its factorization.

23012444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427566 (or 2427562 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 23012444040 its reverse (4044421032), we get a palindrome (27056865072).

The spelling of 23012444040 in words is "twenty-three billion, twelve million, four hundred forty-four thousand, forty".