23769720 has 128 divisors (see below), whose sum is σ = 85377600. Its totient is φ = 5847552.

The previous prime is 23769679. The next prime is 23769721. The reversal of 23769720 is 2796732.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23769721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13194 + ... + 14886.

Almost surely, 2^23769720 is an apocalyptic number.

23769720 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 23769720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42688800).

23769720 is an abundant number, since it is smaller than the sum of its proper divisors (61607880).

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

23769720 is a wasteful number, since it uses less digits than its factorization.

23769720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 23769720 is about 4875.4199819093. The cubic root of 23769720 is about 287.5243886053.

The spelling of 23769720 in words is "twenty-three million, seven hundred sixty-nine thousand, seven hundred twenty".