19914904 has 16 divisors (see below), whose sum is σ = 37425600. Its totient is φ = 9934752.

The previous prime is 19914901. The next prime is 19914929. The reversal of 19914904 is 40941991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19914901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1234 + ... + 6430.

It is an arithmetic number, because the mean of its divisors is an integer number (2339100).

Almost surely, 2^19914904 is an apocalyptic number.

It is an amenable number.

19914904 is a deficient number, since it is larger than the sum of its proper divisors (17510696).

19914904 is a wasteful number, since it uses less digits than its factorization.

19914904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 19914904 is about 4462.6117913168. The cubic root of 19914904 is about 271.0562375629.

The spelling of 19914904 in words is "nineteen million, nine hundred fourteen thousand, nine hundred four".