1720174896 has 120 divisors (see below), whose sum is σ = 5285960784. Its totient is φ = 517870080.

The previous prime is 1720174891. The next prime is 1720174927. The reversal of 1720174896 is 6984710271.

It is a happy number.

It is a super-2 number, since 2×1720174896² = 5918003345657221632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1720174891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245230 + ... + 252146.

Almost surely, 2^1720174896 is an apocalyptic number.

1720174896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1720174896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642980392).

1720174896 is an abundant number, since it is smaller than the sum of its proper divisors (3565785888).

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

1720174896 is a wasteful number, since it uses less digits than its factorization.

1720174896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099 (or 7090 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1720174896 is about 41474.9912115723. The cubic root of 1720174896 is about 1198.1858922261.

The spelling of 1720174896 in words is "one billion, seven hundred twenty million, one hundred seventy-four thousand, eight hundred ninety-six".