18295474 has 4 divisors (see below), whose sum is σ = 27443214. Its totient is φ = 9147736.

The previous prime is 18295469. The next prime is 18295477. The reversal of 18295474 is 47459281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16867449 + 1428025 = 4107^2 + 1195^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18295477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4573867 + ... + 4573870.

Almost surely, 2^18295474 is an apocalyptic number.

18295474 is a deficient number, since it is larger than the sum of its proper divisors (9147740).

18295474 is an equidigital number, since it uses as much as digits as its factorization.

18295474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147739.

The product of its digits is 80640, while the sum is 40.

The square root of 18295474 is about 4277.3208904640. The cubic root of 18295474 is about 263.5003654637.

It can be divided in two parts, 18295 and 474, that added together give a square (18769 = 137²).

The spelling of 18295474 in words is "eighteen million, two hundred ninety-five thousand, four hundred seventy-four".