23720850 has 60 divisors (see below), whose sum is σ = 65920074. Its totient is φ = 6324480.

The previous prime is 23720849. The next prime is 23720857. The reversal of 23720850 is 5802732.

It can be written as a sum of positive squares in 3 ways, for example, as 22155849 + 1565001 = 4707^2 + 1251^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23720857) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1122 + ... + 6978.

Almost surely, 2^23720850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23720850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32960037).

23720850 is an abundant number, since it is smaller than the sum of its proper divisors (42199224).

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

23720850 is a wasteful number, since it uses less digits than its factorization.

23720850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881 (or 5867 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23720850 is about 4870.4055272636. The cubic root of 23720850 is about 287.3272055560.

The spelling of 23720850 in words is "twenty-three million, seven hundred twenty thousand, eight hundred fifty".