442105320 has 32 divisors (see below), whose sum is σ = 1326316320. Its totient is φ = 117894720.

The previous prime is 442105309. The next prime is 442105327. The reversal of 442105320 is 23501244.

It is a super-2 number, since 2×442105320² = 390914227944604800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442105327) 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, 1841986 + ... + 1842225.

It is an arithmetic number, because the mean of its divisors is an integer number (41447385).

Almost surely, 2^442105320 is an apocalyptic number.

442105320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442105320 is an abundant number, since it is smaller than the sum of its proper divisors (884211000).

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

442105320 is a wasteful number, since it uses less digits than its factorization.

442105320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684225 (or 3684221 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 442105320 is about 21026.3006732045. The cubic root of 442105320 is about 761.8016582035.

Adding to 442105320 its reverse (23501244), we get a palindrome (465606564).

The spelling of 442105320 in words is "four hundred forty-two million, one hundred five thousand, three hundred twenty".