1597220352 has 360 divisors, whose sum is σ = 5724102384. Its totient is φ = 419807232.

The previous prime is 1597220323. The next prime is 1597220353. The reversal of 1597220352 is 2530227951.

It is a super-2 number, since 2×1597220352² = 5102225705686007808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597220353) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5451118 + ... + 5451410.

Almost surely, 2^1597220352 is an apocalyptic number.

1597220352 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 1597220352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862051192).

1597220352 is an abundant number, since it is smaller than the sum of its proper divisors (4126882032).

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

1597220352 is a wasteful number, since it uses less digits than its factorization.

1597220352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1597220352 is about 39965.2392961684. The cubic root of 1597220352 is about 1168.9293910080.

The spelling of 1597220352 in words is "one billion, five hundred ninety-seven million, two hundred twenty thousand, three hundred fifty-two".