422444420040 has 64 divisors (see below), whose sum is σ = 1298243842560. Its totient is φ = 109904238080.

The previous prime is 422444420011. The next prime is 422444420063. The reversal of 422444420040 is 40024444224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42926424 + ... + 42936263.

It is an arithmetic number, because the mean of its divisors is an integer number (20285060040).

Almost surely, 2^422444420040 is an apocalyptic number.

422444420040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422444420040 is an abundant number, since it is smaller than the sum of its proper divisors (875799422520).

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

422444420040 is a wasteful number, since it uses less digits than its factorization.

422444420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85862742 (or 85862738 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 422444420040 its reverse (40024444224), we get a palindrome (462468864264).

The spelling of 422444420040 in words is "four hundred twenty-two billion, four hundred forty-four million, four hundred twenty thousand, forty".