23207130 has 24 divisors (see below), whose sum is σ = 60338772. Its totient is φ = 6188544.

The previous prime is 23207117. The next prime is 23207141. The reversal of 23207130 is 3170232.

It can be written as a sum of positive squares in 2 ways, for example, as 20169081 + 3038049 = 4491^2 + 1743^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128839 + ... + 129018.

Almost surely, 2^23207130 is an apocalyptic number.

23207130 is an abundant number, since it is smaller than the sum of its proper divisors (37131642).

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

23207130 is a wasteful number, since it uses less digits than its factorization.

23207130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257870 (or 257867 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23207130 is about 4817.3779174983. The cubic root of 23207130 is about 285.2378439291.

Adding to 23207130 its reverse (3170232), we get a palindrome (26377362).

The spelling of 23207130 in words is "twenty-three million, two hundred seven thousand, one hundred thirty".