404142430344 has 32 divisors (see below), whose sum is σ = 1012994104320. Its totient is φ = 134362406336.

The previous prime is 404142430337. The next prime is 404142430357. The reversal of 404142430344 is 443034241404.

It is a super-2 number, since 2×404142430344² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21974187 + ... + 21992570.

It is an arithmetic number, because the mean of its divisors is an integer number (31656065760).

Almost surely, 2^404142430344 is an apocalyptic number.

It is an amenable number.

404142430344 is an abundant number, since it is smaller than the sum of its proper divisors (608851673976).

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

404142430344 is a wasteful number, since it uses less digits than its factorization.

404142430344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43967149 (or 43967145 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 404142430344 its reverse (443034241404), we get a palindrome (847176671748).

The spelling of 404142430344 in words is "four hundred four billion, one hundred forty-two million, four hundred thirty thousand, three hundred forty-four".