23130439 has 12 divisors (see below), whose sum is σ = 24357544. Its totient is φ = 21948624.

The previous prime is 23130409. The next prime is 23130449. The reversal of 23130439 is 93403132.

It is a happy number.

It is not a de Polignac number, because 23130439 - 2¹³ = 23122247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81592 + ... + 81874.

Almost surely, 2^23130439 is an apocalyptic number.

23130439 is a deficient number, since it is larger than the sum of its proper divisors (1227105).

23130439 is an equidigital number, since it uses as much as digits as its factorization.

23130439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 23130439 is about 4809.4115024606. The cubic root of 23130439 is about 284.9232952496.

The spelling of 23130439 in words is "twenty-three million, one hundred thirty thousand, four hundred thirty-nine".