18274328 has 16 divisors (see below), whose sum is σ = 35754480. Its totient is φ = 8739808.

The previous prime is 18274327. The next prime is 18274331. The reversal of 18274328 is 82347281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49475 + ... + 49842.

It is an arithmetic number, because the mean of its divisors is an integer number (2234655).

Almost surely, 2^18274328 is an apocalyptic number.

It is an amenable number.

18274328 is a deficient number, since it is larger than the sum of its proper divisors (17480152).

18274328 is a wasteful number, since it uses less digits than its factorization.

18274328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99346 (or 99342 counting only the distinct ones).

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

The square root of 18274328 is about 4274.8483014021. The cubic root of 18274328 is about 263.3988079817.

The spelling of 18274328 in words is "eighteen million, two hundred seventy-four thousand, three hundred twenty-eight".