18900274 has 8 divisors (see below), whose sum is σ = 28369008. Its totient is φ = 9443940.

The previous prime is 18900253. The next prime is 18900281. The reversal of 18900274 is 47200981.

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

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, 3669 + ... + 7159.

It is an arithmetic number, because the mean of its divisors is an integer number (3546126).

Almost surely, 2^18900274 is an apocalyptic number.

18900274 is a deficient number, since it is larger than the sum of its proper divisors (9468734).

18900274 is a wasteful number, since it uses less digits than its factorization.

18900274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 18900274 is about 4347.4445367365. Note that the first 3 decimals coincide. The cubic root of 18900274 is about 266.3724877425.

The spelling of 18900274 in words is "eighteen million, nine hundred thousand, two hundred seventy-four".