18765950 has 24 divisors (see below), whose sum is σ = 39891792. Its totient is φ = 6433920.

The previous prime is 18765949. The next prime is 18765961. The reversal of 18765950 is 5956781.

It is a Smith number, since the sum of its digits (41) 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 = 18765898 and 18765907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26459 + ... + 27158.

It is an arithmetic number, because the mean of its divisors is an integer number (1662158).

Almost surely, 2^18765950 is an apocalyptic number.

18765950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18765950 is an abundant number, since it is smaller than the sum of its proper divisors (21125842).

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

18765950 is a wasteful number, since it uses less digits than its factorization.

18765950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53636 (or 53631 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 18765950 is about 4331.9683747691. The cubic root of 18765950 is about 265.7399516305.

The spelling of 18765950 in words is "eighteen million, seven hundred sixty-five thousand, nine hundred fifty".