18905048 has 16 divisors (see below), whose sum is σ = 35609280. Its totient is φ = 9409248.

The previous prime is 18905027. The next prime is 18905053. The reversal of 18905048 is 84050981.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18904999 and 18905017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3515 + ... + 7082.

It is an arithmetic number, because the mean of its divisors is an integer number (2225580).

Almost surely, 2^18905048 is an apocalyptic number.

It is an amenable number.

18905048 is a deficient number, since it is larger than the sum of its proper divisors (16704232).

18905048 is a wasteful number, since it uses less digits than its factorization.

18905048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10826 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 18905048 is about 4347.9935602528. The cubic root of 18905048 is about 266.3949134350.

The spelling of 18905048 in words is "eighteen million, nine hundred five thousand, forty-eight".