18964734 has 16 divisors (see below), whose sum is σ = 37974288. Its totient is φ = 6314112.

The previous prime is 18964723. The next prime is 18964789. The reversal of 18964734 is 43746981.

It is a super-3 number, since 3×18964734³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 6564 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (2373393).

Almost surely, 2^18964734 is an apocalyptic number.

18964734 is an abundant number, since it is smaller than the sum of its proper divisors (19009554).

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

18964734 is a wasteful number, since it uses less digits than its factorization.

18964734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739.

The product of its digits is 145152, while the sum is 42.

The square root of 18964734 is about 4354.8517770413. The cubic root of 18964734 is about 266.6749681443.

The spelling of 18964734 in words is "eighteen million, nine hundred sixty-four thousand, seven hundred thirty-four".