18029384 has 32 divisors (see below), whose sum is σ = 36637920. Its totient is φ = 8284416.

The previous prime is 18029377. The next prime is 18029413. The reversal of 18029384 is 48392081.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 4307 + ... + 7389.

It is an arithmetic number, because the mean of its divisors is an integer number (1144935).

Almost surely, 2^18029384 is an apocalyptic number.

It is an amenable number.

18029384 is an abundant number, since it is smaller than the sum of its proper divisors (18608536).

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

18029384 is a wasteful number, since it uses less digits than its factorization.

18029384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 18029384 is about 4246.1022126181. The cubic root of 18029384 is about 262.2166690494.

The spelling of 18029384 in words is "eighteen million, twenty-nine thousand, three hundred eighty-four".