18894212 has 12 divisors (see below), whose sum is σ = 33183696. Its totient is φ = 9413160.

The previous prime is 18894209. The next prime is 18894223. The reversal of 18894212 is 21249881.

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, 7214 + ... + 9477.

It is an arithmetic number, because the mean of its divisors is an integer number (2765308).

Almost surely, 2^18894212 is an apocalyptic number.

It is an amenable number.

18894212 is a deficient number, since it is larger than the sum of its proper divisors (14289484).

18894212 is a wasteful number, since it uses less digits than its factorization.

18894212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16978 (or 16976 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 18894212 is about 4346.7472896408. The cubic root of 18894212 is about 266.3440062738.

The spelling of 18894212 in words is "eighteen million, eight hundred ninety-four thousand, two hundred twelve".