18474130 has 8 divisors (see below), whose sum is σ = 33253452. Its totient is φ = 7389648.

The previous prime is 18474119. The next prime is 18474143. The reversal of 18474130 is 3147481.

It can be written as a sum of positive squares in 2 ways, for example, as 17065161 + 1408969 = 4131^2 + 1187^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923697 + ... + 923716.

Almost surely, 2^18474130 is an apocalyptic number.

18474130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18474130 is a deficient number, since it is larger than the sum of its proper divisors (14779322).

18474130 is a wasteful number, since it uses less digits than its factorization.

18474130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847420.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 18474130 is about 4298.1542550262. The cubic root of 18474130 is about 264.3552857295.

The spelling of 18474130 in words is "eighteen million, four hundred seventy-four thousand, one hundred thirty".