442324220 has 48 divisors (see below), whose sum is σ = 1019239200. Its totient is φ = 160233216.

The previous prime is 442324219. The next prime is 442324261. The reversal of 442324220 is 22423244.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2270 + ... + 29829.

It is an arithmetic number, because the mean of its divisors is an integer number (21234150).

Almost surely, 2^442324220 is an apocalyptic number.

It is an amenable number.

442324220 is an abundant number, since it is smaller than the sum of its proper divisors (576914980).

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

442324220 is a wasteful number, since it uses less digits than its factorization.

442324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32174 (or 32172 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 442324220 is about 21031.5054144966. The cubic root of 442324220 is about 761.9273679689.

Adding to 442324220 its reverse (22423244), we get a palindrome (464747464).

The spelling of 442324220 in words is "four hundred forty-two million, three hundred twenty-four thousand, two hundred twenty".