1042791682 has 4 divisors (see below), whose sum is σ = 1564187526. Its totient is φ = 521395840.

The previous prime is 1042791677. The next prime is 1042791689. The reversal of 1042791682 is 2861972401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2861972401 = 25183 ⋅113647.

It can be written as a sum of positive squares in only one way, i.e., 633579241 + 409212441 = 25171^2 + 20229^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1042791689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260697919 + ... + 260697922.

Almost surely, 2^1042791682 is an apocalyptic number.

1042791682 is a deficient number, since it is larger than the sum of its proper divisors (521395844).

1042791682 is an equidigital number, since it uses as much as digits as its factorization.

1042791682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521395843.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1042791682 is about 32292.2851777325. The cubic root of 1042791682 is about 1014.0651383888.

The spelling of 1042791682 in words is "one billion, forty-two million, seven hundred ninety-one thousand, six hundred eighty-two".