1720308480 has 288 divisors, whose sum is σ = 6057434880. Its totient is φ = 412631040.

The previous prime is 1720308479. The next prime is 1720308481. The reversal of 1720308480 is 848030271.

It is an interprime number because it is at equal distance from previous prime (1720308479) and next prime (1720308481).

It is a super-2 number, since 2×1720308480² = 5918922532719820800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1720308481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5871214 + ... + 5871506.

It is an arithmetic number, because the mean of its divisors is an integer number (21032760).

Almost surely, 2^1720308480 is an apocalyptic number.

1720308480 is a gapful number since it is divisible by the number (10) 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 1720308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3028717440).

1720308480 is an abundant number, since it is smaller than the sum of its proper divisors (4337126400).

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

1720308480 is a wasteful number, since it uses less digits than its factorization.

1720308480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1720308480 is about 41476.6015965629. The cubic root of 1720308480 is about 1198.2169073517.

The spelling of 1720308480 in words is "one billion, seven hundred twenty million, three hundred eight thousand, four hundred eighty".