442448320 has 28 divisors (see below), whose sum is σ = 1053580824. Its totient is φ = 176979200.

The previous prime is 442448299. The next prime is 442448323. The reversal of 442448320 is 23844244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442448323) 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, 691006 + ... + 691645.

Almost surely, 2^442448320 is an apocalyptic number.

442448320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442448320 is an abundant number, since it is smaller than the sum of its proper divisors (611132504).

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

442448320 is a wasteful number, since it uses less digits than its factorization.

442448320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382668 (or 1382658 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 442448320 is about 21034.4555432272. The cubic root of 442448320 is about 761.9986176244.

The spelling of 442448320 in words is "four hundred forty-two million, four hundred forty-eight thousand, three hundred twenty".