18625212 has 18 divisors (see below), whose sum is σ = 47080488. Its totient is φ = 6208392.

The previous prime is 18625153. The next prime is 18625219. The reversal of 18625212 is 21252681.

It is a happy number.

18625212 is a `hidden beast` number, since 18 + 625 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18625219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258648 + ... + 258719.

Almost surely, 2^18625212 is an apocalyptic number.

18625212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18625212 is an abundant number, since it is smaller than the sum of its proper divisors (28455276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18625212 is a wasteful number, since it uses less digits than its factorization.

18625212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517377 (or 517372 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 18625212 is about 4315.6936869986. The cubic root of 18625212 is about 265.0739653507.

Adding to 18625212 its reverse (21252681), we get a palindrome (39877893).

The spelling of 18625212 in words is "eighteen million, six hundred twenty-five thousand, two hundred twelve".