442526380 has 12 divisors (see below), whose sum is σ = 929305440. Its totient is φ = 177010544.

The previous prime is 442526351. The next prime is 442526393. The reversal of 442526380 is 83625244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11063140 + ... + 11063179.

It is an arithmetic number, because the mean of its divisors is an integer number (77442120).

Almost surely, 2^442526380 is an apocalyptic number.

It is an amenable number.

442526380 is an abundant number, since it is smaller than the sum of its proper divisors (486779060).

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

442526380 is a wasteful number, since it uses less digits than its factorization.

442526380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22126328 (or 22126326 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 442526380 is about 21036.3109883839. The cubic root of 442526380 is about 762.0434274637.

The spelling of 442526380 in words is "four hundred forty-two million, five hundred twenty-six thousand, three hundred eighty".