18887050 has 72 divisors (see below), whose sum is σ = 44083116. Its totient is φ = 5967360.

The previous prime is 18887047. The next prime is 18887123. The reversal of 18887050 is 5078881.

It can be written as a sum of positive squares in 6 ways, for example, as 4439449 + 14447601 = 2107^2 + 3801^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31554 + ... + 32146.

Almost surely, 2^18887050 is an apocalyptic number.

18887050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18887050 is an abundant number, since it is smaller than the sum of its proper divisors (25196066).

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

18887050 is a wasteful number, since it uses less digits than its factorization.

18887050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 18887050 is about 4345.9233771432. The cubic root of 18887050 is about 266.3103487556.

The spelling of 18887050 in words is "eighteen million, eight hundred eighty-seven thousand, fifty".