1598660 has 48 divisors (see below), whose sum is σ = 4045440. Its totient is φ = 518400.

The previous prime is 1598651. The next prime is 1598669. The reversal of 1598660 is 668951.

It is an interprime number because it is at equal distance from previous prime (1598651) and next prime (1598669).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1598660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1598669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2360 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (84280).

2^1598660 is an apocalyptic number.

1598660 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 1598660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2022720).

1598660 is an abundant number, since it is smaller than the sum of its proper divisors (2446780).

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

1598660 is a wasteful number, since it uses less digits than its factorization.

1598660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1598660 is about 1264.3812716107. The cubic root of 1598660 is about 116.9280488776.

The spelling of 1598660 in words is "one million, five hundred ninety-eight thousand, six hundred sixty".