18965934 has 32 divisors (see below), whose sum is σ = 45390240. Its totient is φ = 5835456.

The previous prime is 18965929. The next prime is 18965953. The reversal of 18965934 is 43956981.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18965934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12807 + ... + 14210.

It is an arithmetic number, because the mean of its divisors is an integer number (1418445).

Almost surely, 2^18965934 is an apocalyptic number.

18965934 is an abundant number, since it is smaller than the sum of its proper divisors (26424306).

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

18965934 is a wasteful number, since it uses less digits than its factorization.

18965934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27041 (or 27035 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 18965934 is about 4354.9895522263. The cubic root of 18965934 is about 266.6805926755.

The spelling of 18965934 in words is "eighteen million, nine hundred sixty-five thousand, nine hundred thirty-four".