18478054 has 8 divisors (see below), whose sum is σ = 31676688. Its totient is φ = 7919160.

The previous prime is 18477989. The next prime is 18478063. The reversal of 18478054 is 45087481.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659917 + ... + 659944.

It is an arithmetic number, because the mean of its divisors is an integer number (3959586).

Almost surely, 2^18478054 is an apocalyptic number.

18478054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18478054 is a deficient number, since it is larger than the sum of its proper divisors (13198634).

18478054 is a wasteful number, since it uses less digits than its factorization.

18478054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319870.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 18478054 is about 4298.6107057979. The cubic root of 18478054 is about 264.3740012109.

The spelling of 18478054 in words is "eighteen million, four hundred seventy-eight thousand, fifty-four".