1719628404 has 144 divisors (see below), whose sum is σ = 4751792640. Its totient is φ = 481628160.

The previous prime is 1719628403. The next prime is 1719628423. The reversal of 1719628404 is 4048269171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1719628403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1067952 + ... + 1069560.

It is an arithmetic number, because the mean of its divisors is an integer number (32998560).

Almost surely, 2^1719628404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1719628404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375896320).

1719628404 is an abundant number, since it is smaller than the sum of its proper divisors (3032164236).

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

1719628404 is a wasteful number, since it uses less digits than its factorization.

1719628404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1719628404 is about 41468.4024770668. The cubic root of 1719628404 is about 1198.0589926571.

The spelling of 1719628404 in words is "one billion, seven hundred nineteen million, six hundred twenty-eight thousand, four hundred four".