23037320 has 32 divisors (see below), whose sum is σ = 52018200. Its totient is φ = 9182208.

The previous prime is 23037307. The next prime is 23037349. The reversal of 23037320 is 2373032.

It can be written as a sum of positive squares in 4 ways, for example, as 12292036 + 10745284 = 3506^2 + 3278^2 .

It is a super-2 number, since 2×23037320² = 1061436225564800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23037292 and 23037301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12626 + ... + 14334.

Almost surely, 2^23037320 is an apocalyptic number.

23037320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23037320 is an abundant number, since it is smaller than the sum of its proper divisors (28980880).

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

23037320 is a wasteful number, since it uses less digits than its factorization.

23037320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 20.

The square root of 23037320 is about 4799.7208252147. The cubic root of 23037320 is about 284.5404309753.

The spelling of 23037320 in words is "twenty-three million, thirty-seven thousand, three hundred twenty".