1391842082 has 8 divisors (see below), whose sum is σ = 2089516716. Its totient is φ = 695336512.

The previous prime is 1391842057. The next prime is 1391842087. The reversal of 1391842082 is 2802481931.

It can be written as a sum of positive squares in 2 ways, for example, as 1391364601 + 477481 = 37301^2 + 691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1391842087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289283 + ... + 294054.

Almost surely, 2^1391842082 is an apocalyptic number.

1391842082 is a deficient number, since it is larger than the sum of its proper divisors (697674634).

1391842082 is a wasteful number, since it uses less digits than its factorization.

1391842082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584532.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1391842082 is about 37307.3998289884. The cubic root of 1391842082 is about 1116.5118095596.

The spelling of 1391842082 in words is "one billion, three hundred ninety-one million, eight hundred forty-two thousand, eighty-two".