442781952 has 36 divisors (see below), whose sum is σ = 1178447760. Its totient is φ = 147593728.

The previous prime is 442781939. The next prime is 442781953. The reversal of 442781952 is 259187244.

It is not an unprimeable number, because it can be changed into a prime (442781953) 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, 287502 + ... + 289037.

It is an arithmetic number, because the mean of its divisors is an integer number (32734660).

Almost surely, 2^442781952 is an apocalyptic number.

It is an amenable number.

442781952 is an abundant number, since it is smaller than the sum of its proper divisors (735665808).

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

442781952 is an equidigital number, since it uses as much as digits as its factorization.

442781952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576558 (or 576544 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 442781952 is about 21042.3846557371. The cubic root of 442781952 is about 762.1901000622.

The spelling of 442781952 in words is "four hundred forty-two million, seven hundred eighty-one thousand, nine hundred fifty-two".