18084970 has 8 divisors (see below), whose sum is σ = 32552964. Its totient is φ = 7233984.

The previous prime is 18084967. The next prime is 18085019. The reversal of 18084970 is 7948081.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 47961 = 4247^2 + 219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18084970² = 654132279801800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904239 + ... + 904258.

Almost surely, 2^18084970 is an apocalyptic number.

18084970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18084970 is a deficient number, since it is larger than the sum of its proper divisors (14467994).

18084970 is a wasteful number, since it uses less digits than its factorization.

18084970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808504.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 18084970 is about 4252.6427077760. The cubic root of 18084970 is about 262.4858707437.

The spelling of 18084970 in words is "eighteen million, eighty-four thousand, nine hundred seventy".