1597401428 has 48 divisors (see below), whose sum is σ = 3360129024. Its totient is φ = 649645920.

The previous prime is 1597401427. The next prime is 1597401433. The reversal of 1597401428 is 8241047951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597401427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72023 + ... + 91553.

It is an arithmetic number, because the mean of its divisors is an integer number (70002688).

Almost surely, 2^1597401428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1597401428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680064512).

1597401428 is an abundant number, since it is smaller than the sum of its proper divisors (1762727596).

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

1597401428 is a wasteful number, since it uses less digits than its factorization.

1597401428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19692 (or 19690 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1597401428 is about 39967.5046506534. The cubic root of 1597401428 is about 1168.9735629679.

The spelling of 1597401428 in words is "one billion, five hundred ninety-seven million, four hundred one thousand, four hundred twenty-eight".