442130320 has 40 divisors (see below), whose sum is σ = 1043308224. Its totient is φ = 174210432.

The previous prime is 442130309. The next prime is 442130327. The reversal of 442130320 is 23031244.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (442130327) 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, 35884 + ... + 46603.

Almost surely, 2^442130320 is an apocalyptic number.

442130320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442130320 is an abundant number, since it is smaller than the sum of its proper divisors (601177904).

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

442130320 is a wasteful number, since it uses less digits than its factorization.

442130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82567 (or 82561 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 442130320 is about 21026.8951583442. The cubic root of 442130320 is about 761.8160172877.

Adding to 442130320 its reverse (23031244), we get a palindrome (465161564).

The spelling of 442130320 in words is "four hundred forty-two million, one hundred thirty thousand, three hundred twenty".