442184420 has 12 divisors (see below), whose sum is σ = 928587324. Its totient is φ = 176873760.

The previous prime is 442184419. The next prime is 442184461. The reversal of 442184420 is 24481244.

It can be written as a sum of positive squares in 2 ways, for example, as 326019136 + 116165284 = 18056^2 + 10778^2 .

It is a super-2 number, since 2×442184420² = 391054122581472800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11054591 + ... + 11054630.

It is an arithmetic number, because the mean of its divisors is an integer number (77382277).

Almost surely, 2^442184420 is an apocalyptic number.

It is an amenable number.

442184420 is an abundant number, since it is smaller than the sum of its proper divisors (486402904).

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

442184420 is a wasteful number, since it uses less digits than its factorization.

442184420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22109230 (or 22109228 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

The square root of 442184420 is about 21028.1815666500. The cubic root of 442184420 is about 761.8470884928.

The spelling of 442184420 in words is "four hundred forty-two million, one hundred eighty-four thousand, four hundred twenty".