18946734 has 16 divisors (see below), whose sum is σ = 38700288. Its totient is φ = 6181112.

The previous prime is 18946723. The next prime is 18946751. The reversal of 18946734 is 43764981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33312 + ... + 33875.

It is an arithmetic number, because the mean of its divisors is an integer number (2418768).

Almost surely, 2^18946734 is an apocalyptic number.

18946734 is an abundant number, since it is smaller than the sum of its proper divisors (19753554).

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

18946734 is a wasteful number, since it uses less digits than its factorization.

18946734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67239.

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

The square root of 18946734 is about 4352.7846259607. The cubic root of 18946734 is about 266.5905716907.

The spelling of 18946734 in words is "eighteen million, nine hundred forty-six thousand, seven hundred thirty-four".