1597405942 has 24 divisors (see below), whose sum is σ = 2640342600. Its totient is φ = 724273440.

The previous prime is 1597405939. The next prime is 1597405993. The reversal of 1597405942 is 2495047951.

It is a junction number, because it is equal to n+sod(n) for n = 1597405892 and 1597405901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90909 + ... + 107047.

It is an arithmetic number, because the mean of its divisors is an integer number (110014275).

Almost surely, 2^1597405942 is an apocalyptic number.

1597405942 is a deficient number, since it is larger than the sum of its proper divisors (1042936658).

1597405942 is a wasteful number, since it uses less digits than its factorization.

1597405942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572 (or 16561 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 1597405942 is about 39967.5611214895. The cubic root of 1597405942 is about 1168.9746640774.

The spelling of 1597405942 in words is "one billion, five hundred ninety-seven million, four hundred five thousand, nine hundred forty-two".