442061830 has 48 divisors (see below), whose sum is σ = 930535200. Its totient is φ = 151141872.

The previous prime is 442061821. The next prime is 442061849. The reversal of 442061830 is 38160244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1231191 + ... + 1231549.

It is an arithmetic number, because the mean of its divisors is an integer number (19386150).

Almost surely, 2^442061830 is an apocalyptic number.

442061830 is an abundant number, since it is smaller than the sum of its proper divisors (488473370).

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

442061830 is an frugal number, since it uses more digits than its factorization.

442061830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 442061830 is about 21025.2664668013. The cubic root of 442061830 is about 761.7766778508.

The spelling of 442061830 in words is "four hundred forty-two million, sixty-one thousand, eight hundred thirty".