1720604352 has 56 divisors (see below), whose sum is σ = 4564101616. Its totient is φ = 572064768.

The previous prime is 1720604339. The next prime is 1720604371. The reversal of 1720604352 is 2534060271.

It is a super-2 number, since 2×1720604352² = 5920958672242679808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64938 + ... + 87510.

Almost surely, 2^1720604352 is an apocalyptic number.

1720604352 is a gapful number since it is divisible by the number (12) 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 1720604352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2282050808).

1720604352 is an abundant number, since it is smaller than the sum of its proper divisors (2843497264).

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

1720604352 is a wasteful number, since it uses less digits than its factorization.

1720604352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22985 (or 22975 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1720604352 is about 41480.1681770940. The cubic root of 1720604352 is about 1198.2855962941.

The spelling of 1720604352 in words is "one billion, seven hundred twenty million, six hundred four thousand, three hundred fifty-two".