23442425 has 24 divisors (see below), whose sum is σ = 30212352. Its totient is φ = 18032000.

The previous prime is 23442407. The next prime is 23442427. The reversal of 23442425 is 52424432.

It is a happy number.

It is not a de Polignac number, because 23442425 - 2¹⁰ = 23441401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23442394 and 23442403.

It is not an unprimeable number, because it can be changed into a prime (23442427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83285 + ... + 83565.

It is an arithmetic number, because the mean of its divisors is an integer number (1258848).

Almost surely, 2^23442425 is an apocalyptic number.

23442425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23442425 is a deficient number, since it is larger than the sum of its proper divisors (6769927).

23442425 is a wasteful number, since it uses less digits than its factorization.

23442425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 404 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 23442425 is about 4841.7378078537. The cubic root of 23442425 is about 286.1986044527.

Adding to 23442425 its reverse (52424432), we get a palindrome (75866857).

The spelling of 23442425 in words is "twenty-three million, four hundred forty-two thousand, four hundred twenty-five".