18250012 has 12 divisors (see below), whose sum is σ = 34841016. Its totient is φ = 8295440.

The previous prime is 18249997. The next prime is 18250021. The reversal of 18250012 is 21005281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207343 + ... + 207430.

It is an arithmetic number, because the mean of its divisors is an integer number (2903418).

Almost surely, 2^18250012 is an apocalyptic number.

It is an amenable number.

18250012 is a deficient number, since it is larger than the sum of its proper divisors (16591004).

18250012 is a wasteful number, since it uses less digits than its factorization.

18250012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414788 (or 414786 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 18250012 is about 4272.0032771523. The cubic root of 18250012 is about 263.2819291142.

Adding to 18250012 its reverse (21005281), we get a palindrome (39255293).

The spelling of 18250012 in words is "eighteen million, two hundred fifty thousand, twelve".