18772104 has 32 divisors (see below), whose sum is σ = 50541120. Its totient is φ = 5775936.

The previous prime is 18772099. The next prime is 18772121. The reversal of 18772104 is 40127781.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29772 + ... + 30395.

It is an arithmetic number, because the mean of its divisors is an integer number (1579410).

Almost surely, 2^18772104 is an apocalyptic number.

It is an amenable number.

18772104 is an abundant number, since it is smaller than the sum of its proper divisors (31769016).

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

18772104 is a wasteful number, since it uses less digits than its factorization.

18772104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60189 (or 60185 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 18772104 is about 4332.6786172067. The cubic root of 18772104 is about 265.7689968770.

Adding to 18772104 its reverse (40127781), we get a palindrome (58899885).

The spelling of 18772104 in words is "eighteen million, seven hundred seventy-two thousand, one hundred four".