1720574416 has 40 divisors (see below), whose sum is σ = 3656828448. Its totient is φ = 777744000.

The previous prime is 1720574411. The next prime is 1720574467. The reversal of 1720574416 is 6144750271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720574411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 58861.

Almost surely, 2^1720574416 is an apocalyptic number.

1720574416 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 1720574416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828414224).

1720574416 is an abundant number, since it is smaller than the sum of its proper divisors (1936254032).

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

1720574416 is a wasteful number, since it uses less digits than its factorization.

1720574416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54211 (or 54205 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 1720574416 is about 41479.8073283857. The cubic root of 1720574416 is about 1198.2786467814.

The spelling of 1720574416 in words is "one billion, seven hundred twenty million, five hundred seventy-four thousand, four hundred sixteen".