23873780 has 72 divisors (see below), whose sum is σ = 61793928. Its totient is φ = 7698432.

The previous prime is 23873771. The next prime is 23873809. The reversal of 23873780 is 8737832.

It can be written as a sum of positive squares in 4 ways, for example, as 8726116 + 15147664 = 2954^2 + 3892^2 .

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, 15944 + ... + 17376.

It is an arithmetic number, because the mean of its divisors is an integer number (858249).

Almost surely, 2^23873780 is an apocalyptic number.

23873780 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 23873780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30896964).

23873780 is an abundant number, since it is smaller than the sum of its proper divisors (37920148).

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

23873780 is a wasteful number, since it uses less digits than its factorization.

23873780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 23873780 is about 4886.0802285677. The cubic root of 23873780 is about 287.9433562726.

The spelling of 23873780 in words is "twenty-three million, eight hundred seventy-three thousand, seven hundred eighty".