442225426 has 16 divisors (see below), whose sum is σ = 685765080. Its totient is φ = 213736320.

The previous prime is 442225391. The next prime is 442225429. The reversal of 442225426 is 624522244.

It can be written as a sum of positive squares in 4 ways, for example, as 250430625 + 191794801 = 15825^2 + 13849^2 .

It is not an unprimeable number, because it can be changed into a prime (442225429) 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, 15801 + ... + 33676.

Almost surely, 2^442225426 is an apocalyptic number.

442225426 is a deficient number, since it is larger than the sum of its proper divisors (243539654).

442225426 is a wasteful number, since it uses less digits than its factorization.

442225426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49629.

The product of its digits is 30720, while the sum is 31.

The square root of 442225426 is about 21029.1565689164. The cubic root of 442225426 is about 761.8706377441.

The spelling of 442225426 in words is "four hundred forty-two million, two hundred twenty-five thousand, four hundred twenty-six".