404802080642 has 8 divisors (see below), whose sum is σ = 607212069516. Its totient is φ = 202398057472.

The previous prime is 404802080629. The next prime is 404802080647. The reversal of 404802080642 is 246080208404.

It can be written as a sum of positive squares in 2 ways, for example, as 379134516121 + 25667564521 = 615739^2 + 160211^2 .

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

It is a super-2 number, since 2×404802080642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404802080596 and 404802080605.

It is not an unprimeable number, because it can be changed into a prime (404802080647) 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, 1317743 + ... + 1595634.

Almost surely, 2^404802080642 is an apocalyptic number.

404802080642 is a deficient number, since it is larger than the sum of its proper divisors (202409988874).

404802080642 is a wasteful number, since it uses less digits than its factorization.

404802080642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982852.

The product of its (nonzero) digits is 98304, while the sum is 38.

The spelling of 404802080642 in words is "four hundred four billion, eight hundred two million, eighty thousand, six hundred forty-two".