1597020 has 48 divisors (see below), whose sum is σ = 4583040. Its totient is φ = 415296.

The previous prime is 1596989. The next prime is 1597033. The reversal of 1597020 is 207951.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2271 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (95480).

2^1597020 is an apocalyptic number.

1597020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1597020 is the 1032-nd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1597020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2291520).

1597020 is an abundant number, since it is smaller than the sum of its proper divisors (2986020).

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

1597020 is a wasteful number, since it uses less digits than its factorization.

1597020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1597020 is about 1263.7325666453. The cubic root of 1597020 is about 116.8880512940. Note that the first 3 decimals are identical.

The spelling of 1597020 in words is "one million, five hundred ninety-seven thousand, twenty".