18419030 has 16 divisors (see below), whose sum is σ = 37890720. Its totient is φ = 6315072.

The previous prime is 18419017. The next prime is 18419047. The reversal of 18419030 is 3091481.

It is a super-2 number, since 2×18419030² = 678521332281800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131495 + ... + 131634.

It is an arithmetic number, because the mean of its divisors is an integer number (2368170).

Almost surely, 2^18419030 is an apocalyptic number.

18419030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18419030 is an abundant number, since it is smaller than the sum of its proper divisors (19471690).

18419030 is a wasteful number, since it uses less digits than its factorization.

18419030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263143.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18419030 is about 4291.7397404782. The cubic root of 18419030 is about 264.0922064662.

The spelling of 18419030 in words is "eighteen million, four hundred nineteen thousand, thirty".