19438104 has 48 divisors (see below), whose sum is σ = 56532600. Its totient is φ = 5553408.

The previous prime is 19438099. The next prime is 19438117. The reversal of 19438104 is 40183491.

It is a happy number.

It is a super-2 number, since 2×19438104² = 755679774229632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7089 + ... + 9440.

Almost surely, 2^19438104 is an apocalyptic number.

19438104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19438104 is an abundant number, since it is smaller than the sum of its proper divisors (37094496).

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

19438104 is a wasteful number, since it uses less digits than its factorization.

19438104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16552 (or 16541 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 19438104 is about 4408.8665210006. The cubic root of 19438104 is about 268.8755430037.

The spelling of 19438104 in words is "nineteen million, four hundred thirty-eight thousand, one hundred four".