23642427 has 16 divisors (see below), whose sum is σ = 33691680. Its totient is φ = 14694912.

The previous prime is 23642419. The next prime is 23642431. The reversal of 23642427 is 72424632.

It is not a de Polignac number, because 23642427 - 2³ = 23642419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23642394 and 23642403.

It is not an unprimeable number, because it can be changed into a prime (23642477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (2105730).

Almost surely, 2^23642427 is an apocalyptic number.

23642427 is a deficient number, since it is larger than the sum of its proper divisors (10049253).

23642427 is a wasteful number, since it uses less digits than its factorization.

23642427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382.

The product of its digits is 16128, while the sum is 30.

The square root of 23642427 is about 4862.3478896517. The cubic root of 23642427 is about 287.0102138352.

The spelling of 23642427 in words is "twenty-three million, six hundred forty-two thousand, four hundred twenty-seven".