23253004440 has 96 divisors (see below), whose sum is σ = 76482871920. Its totient is φ = 6126084864.

The previous prime is 23253004417. The next prime is 23253004459. The reversal of 23253004440 is 4440035232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359227 + ... + 418986.

Almost surely, 2^23253004440 is an apocalyptic number.

23253004440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23253004440 is an abundant number, since it is smaller than the sum of its proper divisors (53229867480).

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

23253004440 is a wasteful number, since it uses less digits than its factorization.

23253004440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778313 (or 778306 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 23253004440 its reverse (4440035232), we get a palindrome (27693039672).

The spelling of 23253004440 in words is "twenty-three billion, two hundred fifty-three million, four thousand, four hundred forty".