23765320 has 32 divisors (see below), whose sum is σ = 56619000. Its totient is φ = 8946688.

The previous prime is 23765317. The next prime is 23765321. The reversal of 23765320 is 2356732.

It can be written as a sum of positive squares in 4 ways, for example, as 16048036 + 7717284 = 4006^2 + 2778^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23765321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16795 + ... + 18154.

Almost surely, 2^23765320 is an apocalyptic number.

23765320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23765320 is an abundant number, since it is smaller than the sum of its proper divisors (32853680).

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

23765320 is a wasteful number, since it uses less digits than its factorization.

23765320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34977 (or 34973 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 23765320 is about 4874.9687178484. The cubic root of 23765320 is about 287.5066463492.

The spelling of 23765320 in words is "twenty-three million, seven hundred sixty-five thousand, three hundred twenty".