18900850 has 24 divisors (see below), whose sum is σ = 35737668. Its totient is φ = 7435200.

The previous prime is 18900823. The next prime is 18900851. The reversal of 18900850 is 5800981.

It can be written as a sum of positive squares in 6 ways, for example, as 1520289 + 17380561 = 1233^2 + 4169^2 .

It is not an unprimeable number, because it can be changed into a prime (18900851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 49 + ... + 6148.

Almost surely, 2^18900850 is an apocalyptic number.

18900850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18900850 is a deficient number, since it is larger than the sum of its proper divisors (16836818).

18900850 is a wasteful number, since it uses less digits than its factorization.

18900850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270 (or 6265 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 18900850 is about 4347.5107820453. The cubic root of 18900850 is about 266.3751936820.

The spelling of 18900850 in words is "eighteen million, nine hundred thousand, eight hundred fifty".