23239407700 has 72 divisors (see below), whose sum is σ = 51839666424. Its totient is φ = 9036288000.

The previous prime is 23239407689. The next prime is 23239407733. The reversal of 23239407700 is 770493232.

It can be written as a sum of positive squares in 12 ways, for example, as 3283344 + 23236124356 = 1812^2 + 152434^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 23239407700.

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, 5477580 + ... + 5481820.

It is an arithmetic number, because the mean of its divisors is an integer number (719995367).

Almost surely, 2^23239407700 is an apocalyptic number.

23239407700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23239407700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25919833212).

23239407700 is an abundant number, since it is smaller than the sum of its proper divisors (28600258724).

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

23239407700 is a wasteful number, since it uses less digits than its factorization.

23239407700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773 (or 5766 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 23239407700 in words is "twenty-three billion, two hundred thirty-nine million, four hundred seven thousand, seven hundred".