19496172 has 12 divisors (see below), whose sum is σ = 45491096. Its totient is φ = 6498720.

The previous prime is 19496171. The next prime is 19496201. The reversal of 19496172 is 27169491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 19496172.

It is not an unprimeable number, because it can be changed into a prime (19496171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812329 + ... + 812352.

Almost surely, 2^19496172 is an apocalyptic number.

19496172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19496172 is an abundant number, since it is smaller than the sum of its proper divisors (25994924).

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

19496172 is a wasteful number, since it uses less digits than its factorization.

19496172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624688 (or 1624686 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 19496172 is about 4415.4469762415. The cubic root of 19496172 is about 269.1430166843.

The spelling of 19496172 in words is "nineteen million, four hundred ninety-six thousand, one hundred seventy-two".