6404022042 has 48 divisors (see below), whose sum is σ = 14171739456. Its totient is φ = 1927728000.

The previous prime is 6404022041. The next prime is 6404022047. The reversal of 6404022042 is 2402204046.

It is a super-2 number, since 2×6404022042² = 82022996628843699528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6404022041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80418 + ... + 138834.

It is an arithmetic number, because the mean of its divisors is an integer number (295244572).

Almost surely, 2^6404022042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6404022042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7085869728).

6404022042 is an abundant number, since it is smaller than the sum of its proper divisors (7767717414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6404022042 is a wasteful number, since it uses less digits than its factorization.

6404022042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58595 (or 58584 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 6404022042 is about 80025.1338143211. The cubic root of 6404022042 is about 1857.0243825256.

Adding to 6404022042 its reverse (2402204046), we get a palindrome (8806226088).

The spelling of 6404022042 in words is "six billion, four hundred four million, twenty-two thousand, forty-two".