422844442 has 4 divisors (see below), whose sum is σ = 634266666. Its totient is φ = 211422220.

The previous prime is 422844427. The next prime is 422844481. The reversal of 422844442 is 244448224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 390023001 + 32821441 = 19749^2 + 5729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 422844398 and 422844407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105711109 + ... + 105711112.

Almost surely, 2^422844442 is an apocalyptic number.

422844442 is a deficient number, since it is larger than the sum of its proper divisors (211422224).

422844442 is a wasteful number, since it uses less digits than its factorization.

422844442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211422223.

The product of its digits is 65536, while the sum is 34.

The square root of 422844442 is about 20563.1817090644. The cubic root of 422844442 is about 750.5740446663.

The spelling of 422844442 in words is "four hundred twenty-two million, eight hundred forty-four thousand, four hundred forty-two".