442211052 has 24 divisors (see below), whose sum is σ = 1044259776. Its totient is φ = 145627408.

The previous prime is 442211051. The next prime is 442211059. The reversal of 442211052 is 250112244.

It is a super-2 number, since 2×442211052² = 391101229021893408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442211051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220998 + ... + 222989.

It is an arithmetic number, because the mean of its divisors is an integer number (43510824).

Almost surely, 2^442211052 is an apocalyptic number.

It is an amenable number.

442211052 is an abundant number, since it is smaller than the sum of its proper divisors (602048724).

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

442211052 is a wasteful number, since it uses less digits than its factorization.

442211052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444077 (or 444075 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 442211052 is about 21028.8148025513. The cubic root of 442211052 is about 761.8623830950.

Adding to 442211052 its reverse (250112244), we get a palindrome (692323296).

The spelling of 442211052 in words is "four hundred forty-two million, two hundred eleven thousand, fifty-two".