18034474 has 4 divisors (see below), whose sum is σ = 27051714. Its totient is φ = 9017236.

The previous prime is 18034463. The next prime is 18034481. The reversal of 18034474 is 47443081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47443081 = 7 ⋅6777583.

It can be written as a sum of positive squares in only one way, i.e., 9653449 + 8381025 = 3107^2 + 2895^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4508617 + ... + 4508620.

Almost surely, 2^18034474 is an apocalyptic number.

18034474 is a deficient number, since it is larger than the sum of its proper divisors (9017240).

18034474 is an equidigital number, since it uses as much as digits as its factorization.

18034474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9017239.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 18034474 is about 4246.7015435512. The cubic root of 18034474 is about 262.2413427943.

The spelling of 18034474 in words is "eighteen million, thirty-four thousand, four hundred seventy-four".