18963834 has 16 divisors (see below), whose sum is σ = 37970688. Its totient is φ = 6314112.

The previous prime is 18963827. The next prime is 18963851. The reversal of 18963834 is 43836981.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8394 + ... + 10410.

It is an arithmetic number, because the mean of its divisors is an integer number (2373168).

Almost surely, 2^18963834 is an apocalyptic number.

18963834 is an abundant number, since it is smaller than the sum of its proper divisors (19006854).

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

18963834 is a wasteful number, since it uses less digits than its factorization.

18963834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589.

The product of its digits is 124416, while the sum is 42.

The square root of 18963834 is about 4354.7484427921. The cubic root of 18963834 is about 266.6707495903.

The spelling of 18963834 in words is "eighteen million, nine hundred sixty-three thousand, eight hundred thirty-four".