19896672 has 24 divisors (see below), whose sum is σ = 52229016. Its totient is φ = 6632192.

The previous prime is 19896649. The next prime is 19896689. The reversal of 19896672 is 27669891.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 103533 + ... + 103724.

It is an arithmetic number, because the mean of its divisors is an integer number (2176209).

Almost surely, 2^19896672 is an apocalyptic number.

19896672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19896672 is an abundant number, since it is smaller than the sum of its proper divisors (32332344).

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

19896672 is a wasteful number, since it uses less digits than its factorization.

19896672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207270 (or 207262 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 19896672 is about 4460.5685736238. The cubic root of 19896672 is about 270.9734954085.

The spelling of 19896672 in words is "nineteen million, eight hundred ninety-six thousand, six hundred seventy-two".