19031796 has 54 divisors (see below), whose sum is σ = 55967730. Its totient is φ = 5437152.

The previous prime is 19031773. The next prime is 19031797. The reversal of 19031796 is 69713091.

It can be written as a sum of positive squares in only one way, i.e., 15920100 + 3111696 = 3990^2 + 1764^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19031796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19031797) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3631 + ... + 7158.

Almost surely, 2^19031796 is an apocalyptic number.

It is an amenable number.

19031796 is an abundant number, since it is smaller than the sum of its proper divisors (36935934).

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

19031796 is a wasteful number, since it uses less digits than its factorization.

19031796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10813 (or 10801 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 19031796 is about 4362.5446702584. The cubic root of 19031796 is about 266.9889319151.

The spelling of 19031796 in words is "nineteen million, thirty-one thousand, seven hundred ninety-six".