18049284 has 48 divisors (see below), whose sum is σ = 51051840. Its totient is φ = 5469120.

The previous prime is 18049279. The next prime is 18049313. The reversal of 18049284 is 48294081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6409 + ... + 8784.

It is an arithmetic number, because the mean of its divisors is an integer number (1063580).

Almost surely, 2^18049284 is an apocalyptic number.

It is an amenable number.

18049284 is an abundant number, since it is smaller than the sum of its proper divisors (33002556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18049284 is a wasteful number, since it uses less digits than its factorization.

18049284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15217 (or 15209 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18049284 is about 4248.4448919575. Note that the first 3 decimals coincide. The cubic root of 18049284 is about 262.3131077862.

The spelling of 18049284 in words is "eighteen million, forty-nine thousand, two hundred eighty-four".