18942276 has 24 divisors (see below), whose sum is σ = 44331840. Its totient is φ = 6295072.

The previous prime is 18942263. The next prime is 18942281. The reversal of 18942276 is 67224981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2110 + ... + 6506.

It is an arithmetic number, because the mean of its divisors is an integer number (1847160).

Almost surely, 2^18942276 is an apocalyptic number.

It is an amenable number.

18942276 is an abundant number, since it is smaller than the sum of its proper divisors (25389564).

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

18942276 is a wasteful number, since it uses less digits than its factorization.

18942276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4763 (or 4761 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 18942276 is about 4352.2725098505. The cubic root of 18942276 is about 266.5696612444.

The spelling of 18942276 in words is "eighteen million, nine hundred forty-two thousand, two hundred seventy-six".