404024305343442 has 16 divisors (see below), whose sum is σ = 923484126499392. Its totient is φ = 115435515812400.

The previous prime is 404024305343411. The next prime is 404024305343447. The reversal of 404024305343442 is 244343503420404.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 9619626317701 = 404024305343442 / (4 + 0 + 4 + 0 + 2 + 4 + 3 + 0 + 5 + 3 + 4 + 3 + 4 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 404024305343394 and 404024305343403.

It is not an unprimeable number, because it can be changed into a prime (404024305343447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4809813158809 + ... + 4809813158892.

It is an arithmetic number, because the mean of its divisors is an integer number (57717757906212).

Almost surely, 2^{404024305343442} is an apocalyptic number.

404024305343442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

404024305343442 is an abundant number, since it is smaller than the sum of its proper divisors (519459821155950).

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

404024305343442 is a wasteful number, since it uses less digits than its factorization.

404024305343442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619626317713.

The product of its (nonzero) digits is 2211840, while the sum is 42.

Adding to 404024305343442 its reverse (244343503420404), we get a palindrome (648367808763846).

The spelling of 404024305343442 in words is "four hundred four trillion, twenty-four billion, three hundred five million, three hundred forty-three thousand, four hundred forty-two".