19904102 has 8 divisors (see below), whose sum is σ = 29877312. Its totient is φ = 9945000.

The previous prime is 19904083. The next prime is 19904111. The reversal of 19904102 is 20140991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352 + ... + 6452.

It is an arithmetic number, because the mean of its divisors is an integer number (3734664).

Almost surely, 2^19904102 is an apocalyptic number.

19904102 is a deficient number, since it is larger than the sum of its proper divisors (9973210).

19904102 is a wasteful number, since it uses less digits than its factorization.

19904102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7054.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19904102 is about 4461.4013493520. The cubic root of 19904102 is about 271.0072210237.

The spelling of 19904102 in words is "nineteen million, nine hundred four thousand, one hundred two".