23390889020 has 48 divisors (see below), whose sum is σ = 51427020960. Its totient is φ = 8924864256.

The previous prime is 23390889007. The next prime is 23390889029. The reversal of 23390889020 is 2098809332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23390889029) 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, 194807 + ... + 291086.

It is an arithmetic number, because the mean of its divisors is an integer number (1071396270).

Almost surely, 2^23390889020 is an apocalyptic number.

23390889020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23390889020 is an abundant number, since it is smaller than the sum of its proper divisors (28036131940).

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

23390889020 is a wasteful number, since it uses less digits than its factorization.

23390889020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486014 (or 486012 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 23390889020 in words is "twenty-three billion, three hundred ninety million, eight hundred eighty-nine thousand, twenty".