18425012 has 24 divisors (see below), whose sum is σ = 32928000. Its totient is φ = 9019296.

The previous prime is 18425009. The next prime is 18425021. The reversal of 18425012 is 21052481.

It is a congruent number.

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, 62738 + ... + 63030.

It is an arithmetic number, because the mean of its divisors is an integer number (1372000).

Almost surely, 2^18425012 is an apocalyptic number.

It is an amenable number.

18425012 is a deficient number, since it is larger than the sum of its proper divisors (14502988).

18425012 is a wasteful number, since it uses less digits than its factorization.

18425012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 18425012 is about 4292.4366040747. The cubic root of 18425012 is about 264.1207933604.

Adding to 18425012 its reverse (21052481), we get a palindrome (39477493).

The spelling of 18425012 in words is "eighteen million, four hundred twenty-five thousand, twelve".