20182090 has 16 divisors (see below), whose sum is σ = 36390240. Its totient is φ = 8058960.

The previous prime is 20182087. The next prime is 20182121. The reversal of 20182090 is 9028102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6025 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (2274390).

Almost surely, 2^20182090 is an apocalyptic number.

20182090 is a deficient number, since it is larger than the sum of its proper divisors (16208150).

20182090 is a wasteful number, since it uses less digits than its factorization.

20182090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 20182090 is about 4492.4481076580. The cubic root of 20182090 is about 272.2630546984.

The spelling of 20182090 in words is "twenty million, one hundred eighty-two thousand, ninety".