842666474 has 12 divisors (see below), whose sum is σ = 1361469606. Its totient is φ = 388854672.

The previous prime is 842666423. The next prime is 842666501. The reversal of 842666474 is 474666248.

It can be written as a sum of positive squares in 3 ways, for example, as 234304249 + 608362225 = 15307^2 + 24665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145172 + ... + 150864.

Almost surely, 2^842666474 is an apocalyptic number.

842666474 is a deficient number, since it is larger than the sum of its proper divisors (518803132).

842666474 is an frugal number, since it uses more digits than its factorization.

842666474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401 (or 5708 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 47.

The square root of 842666474 is about 29028.7180908837. The cubic root of 842666474 is about 944.5361231244.

The spelling of 842666474 in words is "eight hundred forty-two million, six hundred sixty-six thousand, four hundred seventy-four".