18789050 has 36 divisors (see below), whose sum is σ = 40658670. Its totient is φ = 6441120.

The previous prime is 18789041. The next prime is 18789053. The reversal of 18789050 is 5098781.

It can be written as a sum of positive squares in 3 ways, for example, as 17581249 + 1207801 = 4193^2 + 1099^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 18788995 and 18789013.

It is not an unprimeable number, because it can be changed into a prime (18789053) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1385 + ... + 6284.

Almost surely, 2^18789050 is an apocalyptic number.

18789050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18789050 is an abundant number, since it is smaller than the sum of its proper divisors (21869620).

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

18789050 is a wasteful number, since it uses less digits than its factorization.

18789050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695 (or 7683 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 18789050 is about 4334.6337792252. The cubic root of 18789050 is about 265.8489447063.

The spelling of 18789050 in words is "eighteen million, seven hundred eighty-nine thousand, fifty".