442449528 has 32 divisors (see below), whose sum is σ = 1154217600. Its totient is φ = 141070688.

The previous prime is 442449521. The next prime is 442449563. The reversal of 442449528 is 825944244.

It is a self number, because there is not a number n which added to its sum of digits gives 442449528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442449521) 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, 400218 + ... + 401321.

It is an arithmetic number, because the mean of its divisors is an integer number (36069300).

Almost surely, 2^442449528 is an apocalyptic number.

It is an amenable number.

442449528 is an abundant number, since it is smaller than the sum of its proper divisors (711768072).

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

442449528 is a wasteful number, since it uses less digits than its factorization.

442449528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801571 (or 801567 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 442449528 is about 21034.4842579988. The cubic root of 442449528 is about 761.9993111091. Note that the first 3 decimals are identical.

The spelling of 442449528 in words is "four hundred forty-two million, four hundred forty-nine thousand, five hundred twenty-eight".