23831772 has 48 divisors (see below), whose sum is σ = 58813440. Its totient is φ = 7495488.

The previous prime is 23831771. The next prime is 23831791. The reversal of 23831772 is 27713832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23831771) 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, 21258 + ... + 22350.

It is an arithmetic number, because the mean of its divisors is an integer number (1225280).

Almost surely, 2^23831772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23831772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29406720).

23831772 is an abundant number, since it is smaller than the sum of its proper divisors (34981668).

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

23831772 is a wasteful number, since it uses less digits than its factorization.

23831772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 23831772 is about 4881.7795935499. The cubic root of 23831772 is about 287.7743699612.

The spelling of 23831772 in words is "twenty-three million, eight hundred thirty-one thousand, seven hundred seventy-two".