1598720 has 36 divisors (see below), whose sum is σ = 3832500. Its totient is φ = 638976.

The previous prime is 1598711. The next prime is 1598743. The reversal of 1598720 is 278951.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 984064 = 784^2 + 992^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656 + ... + 1904.

2^1598720 is an apocalyptic number.

1598720 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 1598720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916250).

1598720 is an abundant number, since it is smaller than the sum of its proper divisors (2233780).

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

1598720 is an equidigital number, since it uses as much as digits as its factorization.

1598720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1598720 is about 1264.4049984083. The cubic root of 1598720 is about 116.9295116851.

The spelling of 1598720 in words is "one million, five hundred ninety-eight thousand, seven hundred twenty".