18906282 has 12 divisors (see below), whose sum is σ = 40963650. Its totient is φ = 6302088.

The previous prime is 18906271. The next prime is 18906301. The reversal of 18906282 is 28260981.

It can be written as a sum of positive squares in only one way, i.e., 18844281 + 62001 = 4341^2 + 249^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525157 + ... + 525192.

Almost surely, 2^18906282 is an apocalyptic number.

18906282 is an abundant number, since it is smaller than the sum of its proper divisors (22057368).

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

18906282 is a wasteful number, since it uses less digits than its factorization.

18906282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050357 (or 1050354 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 18906282 is about 4348.1354624712. The cubic root of 18906282 is about 266.4007094914.

The spelling of 18906282 in words is "eighteen million, nine hundred six thousand, two hundred eighty-two".