19447468 has 12 divisors (see below), whose sum is σ = 34512912. Its totient is φ = 9586640.

The previous prime is 19447457. The next prime is 19447513. The reversal of 19447468 is 86474491.

It is a super-2 number, since 2×19447468² = 756408023222048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33955 + ... + 34522.

It is an arithmetic number, because the mean of its divisors is an integer number (2876076).

Almost surely, 2^19447468 is an apocalyptic number.

It is an amenable number.

19447468 is a deficient number, since it is larger than the sum of its proper divisors (15065444).

19447468 is a wasteful number, since it uses less digits than its factorization.

19447468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68552 (or 68550 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 19447468 is about 4409.9283440891. The cubic root of 19447468 is about 268.9187115898.

The spelling of 19447468 in words is "nineteen million, four hundred forty-seven thousand, four hundred sixty-eight".