19896216 has 32 divisors (see below), whose sum is σ = 50587200. Its totient is φ = 6519200.

The previous prime is 19896209. The next prime is 19896221. The reversal of 19896216 is 61269891.

It is a super-2 number, since 2×19896216² = 791718822237312, 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 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 8441.

It is an arithmetic number, because the mean of its divisors is an integer number (1580850).

Almost surely, 2^19896216 is an apocalyptic number.

It is an amenable number.

19896216 is an abundant number, since it is smaller than the sum of its proper divisors (30690984).

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

19896216 is a wasteful number, since it uses less digits than its factorization.

19896216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14119 (or 14115 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 19896216 is about 4460.5174587709. The cubic root of 19896216 is about 270.9714252992.

The spelling of 19896216 in words is "nineteen million, eight hundred ninety-six thousand, two hundred sixteen".