23781852 has 18 divisors (see below), whose sum is σ = 60115328. Its totient is φ = 7927272.

The previous prime is 23781847. The next prime is 23781853. The reversal of 23781852 is 25818732.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 660607 = 23781852 / (2 + 3 + 7 + 8 + 1 + 8 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23781853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330268 + ... + 330339.

Almost surely, 2^23781852 is an apocalyptic number.

It is an amenable number.

23781852 is an abundant number, since it is smaller than the sum of its proper divisors (36333476).

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

23781852 is a wasteful number, since it uses less digits than its factorization.

23781852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660617 (or 660612 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 23781852 is about 4876.6640236949. The cubic root of 23781852 is about 287.5732975054.

It can be divided in two parts, 23 and 781852, that added together give a triangular number (781875 = T₁₂₅₀).

The spelling of 23781852 in words is "twenty-three million, seven hundred eighty-one thousand, eight hundred fifty-two".