18825768 has 48 divisors (see below), whose sum is σ = 54911220. Its totient is φ = 5792256.

The previous prime is 18825767. The next prime is 18825769. The reversal of 18825768 is 86752881.

It is an interprime number because it is at equal distance from previous prime (18825767) and next prime (18825769).

It can be written as a sum of positive squares in 2 ways, for example, as 15069924 + 3755844 = 3882^2 + 1938^2 .

It is not an unprimeable number, because it can be changed into a prime (18825767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9121 + ... + 10992.

Almost surely, 2^18825768 is an apocalyptic number.

18825768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18825768 is an abundant number, since it is smaller than the sum of its proper divisors (36085452).

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

18825768 is a wasteful number, since it uses less digits than its factorization.

18825768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20138 (or 20131 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 18825768 is about 4338.8671332503. The cubic root of 18825768 is about 266.0220080911.

The spelling of 18825768 in words is "eighteen million, eight hundred twenty-five thousand, seven hundred sixty-eight".