18904034 has 32 divisors (see below), whose sum is σ = 31352832. Its totient is φ = 8512000.

The previous prime is 18904033. The next prime is 18904037. The reversal of 18904034 is 43040981.

It is a super-3 number, since 3×18904034³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18903988 and 18904006.

It is not an unprimeable number, because it can be changed into a prime (18904033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98879 + ... + 99069.

It is an arithmetic number, because the mean of its divisors is an integer number (979776).

Almost surely, 2^18904034 is an apocalyptic number.

18904034 is a deficient number, since it is larger than the sum of its proper divisors (12448798).

18904034 is a wasteful number, since it uses less digits than its factorization.

18904034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 18904034 is about 4347.8769531807. The cubic root of 18904034 is about 266.3901505225.

The spelling of 18904034 in words is "eighteen million, nine hundred four thousand, thirty-four".