18934512 has 40 divisors (see below), whose sum is σ = 49153104. Its totient is φ = 6280704.

The previous prime is 18934511. The next prime is 18934519. The reversal of 18934512 is 21543981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18934511) by changing a digit.

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, 10338 + ... + 12030.

Almost surely, 2^18934512 is an apocalyptic number.

18934512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18934512 is an abundant number, since it is smaller than the sum of its proper divisors (30218592).

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

18934512 is a wasteful number, since it uses less digits than its factorization.

18934512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1931 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 18934512 is about 4351.3804706093. The cubic root of 18934512 is about 266.5332360249.

The spelling of 18934512 in words is "eighteen million, nine hundred thirty-four thousand, five hundred twelve".