1957834385 has 16 divisors (see below), whose sum is σ = 2663290560. Its totient is φ = 1369690560.

The previous prime is 1957834381. The next prime is 1957834409. The reversal of 1957834385 is 5834387591.

It is not a de Polignac number, because 1957834385 - 2² = 1957834381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1957834381) 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, 791411 + ... + 793880.

It is an arithmetic number, because the mean of its divisors is an integer number (166455660).

Almost surely, 2^1957834385 is an apocalyptic number.

It is an amenable number.

1957834385 is a deficient number, since it is larger than the sum of its proper divisors (705456175).

1957834385 is a wasteful number, since it uses less digits than its factorization.

1957834385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585328.

The product of its digits is 3628800, while the sum is 53.

The square root of 1957834385 is about 44247.4223543022. The cubic root of 1957834385 is about 1251.0038623924.

The spelling of 1957834385 in words is "one billion, nine hundred fifty-seven million, eight hundred thirty-four thousand, three hundred eighty-five".