442277444 has 12 divisors (see below), whose sum is σ = 884554944. Its totient is φ = 189547464.

The previous prime is 442277431. The next prime is 442277447. The reversal of 442277444 is 444772244.

442277444 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 442277398 and 442277407.

It is not an unprimeable number, because it can be changed into a prime (442277447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7897784 + ... + 7897839.

It is an arithmetic number, because the mean of its divisors is an integer number (73712912).

Almost surely, 2^442277444 is an apocalyptic number.

It is an amenable number.

442277444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

442277444 is a wasteful number, since it uses less digits than its factorization.

442277444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15795634 (or 15795632 counting only the distinct ones).

The product of its digits is 200704, while the sum is 38.

The square root of 442277444 is about 21030.3933391651. The cubic root of 442277444 is about 761.9005089596.

The spelling of 442277444 in words is "four hundred forty-two million, two hundred seventy-seven thousand, four hundred forty-four".