23400972220 has 24 divisors (see below), whose sum is σ = 50340629808. Its totient is φ = 9132086400.

The previous prime is 23400972167. The next prime is 23400972227. The reversal of 23400972220 is 2227900432.

It is a super-3 number, since 3×23400972220³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400972227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14268066 + ... + 14269705.

It is an arithmetic number, because the mean of its divisors is an integer number (2097526242).

Almost surely, 2^23400972220 is an apocalyptic number.

23400972220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23400972220 is an abundant number, since it is smaller than the sum of its proper divisors (26939657588).

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

23400972220 is a wasteful number, since it uses less digits than its factorization.

23400972220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28537821 (or 28537819 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 23400972220 in words is "twenty-three billion, four hundred million, nine hundred seventy-two thousand, two hundred twenty".