18474461 has 8 divisors (see below), whose sum is σ = 19647360. Its totient is φ = 17311168.

The previous prime is 18474457. The next prime is 18474487. The reversal of 18474461 is 16447481.

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

It is not a de Polignac number, because 18474461 - 2² = 18474457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18474761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (2455920).

Almost surely, 2^18474461 is an apocalyptic number.

It is an amenable number.

18474461 is a deficient number, since it is larger than the sum of its proper divisors (1172899).

18474461 is a wasteful number, since it uses less digits than its factorization.

18474461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803.

The product of its digits is 21504, while the sum is 35.

The square root of 18474461 is about 4298.1927597538. The cubic root of 18474461 is about 264.3568645333.

The spelling of 18474461 in words is "eighteen million, four hundred seventy-four thousand, four hundred sixty-one".