18419212 has 24 divisors (see below), whose sum is σ = 36953504. Its totient is φ = 7869312.

The previous prime is 18419207. The next prime is 18419221. The reversal of 18419212 is 21291481.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 10288 + ... + 11944.

Almost surely, 2^18419212 is an apocalyptic number.

It is an amenable number.

18419212 is an abundant number, since it is smaller than the sum of its proper divisors (18534292).

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

18419212 is a wasteful number, since it uses less digits than its factorization.

18419212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065 (or 2063 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 18419212 is about 4291.7609439483. The cubic root of 18419212 is about 264.0930763025.

The spelling of 18419212 in words is "eighteen million, four hundred nineteen thousand, two hundred twelve".