442927772 has 48 divisors (see below), whose sum is σ = 938595840. Its totient is φ = 178656192.

The previous prime is 442927769. The next prime is 442927781. The reversal of 442927772 is 277729244.

It is a super-2 number, since 2×442927772² = 392370022417767968, which contains 22 as substring.

Its product of digits (395136) is a multiple of the sum of its prime divisors (5488).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80873 + ... + 86175.

It is an arithmetic number, because the mean of its divisors is an integer number (19554080).

Almost surely, 2^442927772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442927772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469297920).

442927772 is an abundant number, since it is smaller than the sum of its proper divisors (495668068).

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

442927772 is a wasteful number, since it uses less digits than its factorization.

442927772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490 (or 5488 counting only the distinct ones).

The product of its digits is 395136, while the sum is 44.

The square root of 442927772 is about 21045.8492819843. The cubic root of 442927772 is about 762.2737607756.

The spelling of 442927772 in words is "four hundred forty-two million, nine hundred twenty-seven thousand, seven hundred seventy-two".