23520998040 has 64 divisors (see below), whose sum is σ = 74713764960. Its totient is φ = 5903308800.

The previous prime is 23520998009. The next prime is 23520998089. The reversal of 23520998040 is 4089902532.

It is a junction number, because it is equal to n+sod(n) for n = 23520997983 and 23520998001.

It is a congruent number.

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, 5762911 + ... + 5766990.

Almost surely, 2^23520998040 is an apocalyptic number.

23520998040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23520998040 is an abundant number, since it is smaller than the sum of its proper divisors (51192766920).

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

23520998040 is a wasteful number, since it uses less digits than its factorization.

23520998040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529932 (or 11529928 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 23520998040 in words is "twenty-three billion, five hundred twenty million, nine hundred ninety-eight thousand, forty".