18768860 has 24 divisors (see below), whose sum is σ = 42998256. Its totient is φ = 6824960.

The previous prime is 18768859. The next prime is 18768917. The reversal of 18768860 is 6886781.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 42437 + ... + 42876.

It is an arithmetic number, because the mean of its divisors is an integer number (1791594).

Almost surely, 2^18768860 is an apocalyptic number.

18768860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18768860 is an abundant number, since it is smaller than the sum of its proper divisors (24229396).

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

18768860 is a wasteful number, since it uses less digits than its factorization.

18768860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85333 (or 85331 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 18768860 is about 4332.3042367775. The cubic root of 18768860 is about 265.7536868494.

The spelling of 18768860 in words is "eighteen million, seven hundred sixty-eight thousand, eight hundred sixty".