19628396 has 6 divisors (see below), whose sum is σ = 34349700. Its totient is φ = 9814196.

The previous prime is 19628369. The next prime is 19628417. The reversal of 19628396 is 69382691.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2453546 + ... + 2453553.

It is an arithmetic number, because the mean of its divisors is an integer number (5724950).

Almost surely, 2^19628396 is an apocalyptic number.

It is an amenable number.

19628396 is a deficient number, since it is larger than the sum of its proper divisors (14721304).

19628396 is a wasteful number, since it uses less digits than its factorization.

19628396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907103 (or 4907101 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 19628396 is about 4430.3945648215. The cubic root of 19628396 is about 269.7500934085.

The spelling of 19628396 in words is "nineteen million, six hundred twenty-eight thousand, three hundred ninety-six".