18883090 has 32 divisors (see below), whose sum is σ = 36208944. Its totient is φ = 7065600.

The previous prime is 18883043. The next prime is 18883153. The reversal of 18883090 is 9038881.

It can be written as a sum of positive squares in 8 ways, for example, as 13816089 + 5067001 = 3717^2 + 2251^2 .

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, 46890 + ... + 47290.

Almost surely, 2^18883090 is an apocalyptic number.

18883090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18883090 is a deficient number, since it is larger than the sum of its proper divisors (17325854).

18883090 is a wasteful number, since it uses less digits than its factorization.

18883090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18883090 is about 4345.4677538787. The cubic root of 18883090 is about 266.2917352490.

The spelling of 18883090 in words is "eighteen million, eight hundred eighty-three thousand, ninety".