442814164 has 24 divisors (see below), whose sum is σ = 883626408. Its totient is φ = 192353280.

The previous prime is 442814159. The next prime is 442814219. The reversal of 442814164 is 461418244.

It can be written as a sum of positive squares in 4 ways, for example, as 62252100 + 380562064 = 7890^2 + 19508^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249577 + ... + 251344.

It is an arithmetic number, because the mean of its divisors is an integer number (36817767).

Almost surely, 2^442814164 is an apocalyptic number.

It is an amenable number.

442814164 is a deficient number, since it is larger than the sum of its proper divisors (440812244).

442814164 is a wasteful number, since it uses less digits than its factorization.

442814164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500955 (or 500953 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 442814164 is about 21043.1500493629. The cubic root of 442814164 is about 762.2085825019.

The spelling of 442814164 in words is "four hundred forty-two million, eight hundred fourteen thousand, one hundred sixty-four".