18034290 has 24 divisors (see below), whose sum is σ = 46889388. Its totient is φ = 4809120.

The previous prime is 18034279. The next prime is 18034307. The reversal of 18034290 is 9243081.

It can be written as a sum of positive squares in 2 ways, for example, as 15515721 + 2518569 = 3939^2 + 1587^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100101 + ... + 100280.

Almost surely, 2^18034290 is an apocalyptic number.

18034290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18034290 is an abundant number, since it is smaller than the sum of its proper divisors (28855098).

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

18034290 is a wasteful number, since it uses less digits than its factorization.

18034290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200394 (or 200391 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 18034290 is about 4246.6798796236. The cubic root of 18034290 is about 262.2404509363.

The spelling of 18034290 in words is "eighteen million, thirty-four thousand, two hundred ninety".