19934904 has 32 divisors (see below), whose sum is σ = 54368640. Its totient is φ = 6040800.

The previous prime is 19934903. The next prime is 19934917. The reversal of 19934904 is 40943991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19934903) 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, 37492 + ... + 38019.

It is an arithmetic number, because the mean of its divisors is an integer number (1699020).

Almost surely, 2^19934904 is an apocalyptic number.

It is an amenable number.

19934904 is an abundant number, since it is smaller than the sum of its proper divisors (34433736).

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

19934904 is a wasteful number, since it uses less digits than its factorization.

19934904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75531 (or 75527 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 19934904 is about 4464.8520692180. The cubic root of 19934904 is about 271.1469453564.

The spelling of 19934904 in words is "nineteen million, nine hundred thirty-four thousand, nine hundred four".