18938050 has 12 divisors (see below), whose sum is σ = 35224866. Its totient is φ = 7575200.

The previous prime is 18938047. The next prime is 18938057. The reversal of 18938050 is 5083981.

It can be written as a sum of positive squares in 3 ways, for example, as 13771521 + 5166529 = 3711^2 + 2273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18937997 and 18938015.

It is not an unprimeable number, because it can be changed into a prime (18938057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189331 + ... + 189430.

Almost surely, 2^18938050 is an apocalyptic number.

18938050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18938050 is a deficient number, since it is larger than the sum of its proper divisors (16286816).

18938050 is a wasteful number, since it uses less digits than its factorization.

18938050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378773 (or 378768 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 18938050 is about 4351.7869892723. The cubic root of 18938050 is about 266.5498359750.

The spelling of 18938050 in words is "eighteen million, nine hundred thirty-eight thousand, fifty".