442533774 has 8 divisors (see below), whose sum is σ = 885067560. Its totient is φ = 147511256.

The previous prime is 442533743. The next prime is 442533797. The reversal of 442533774 is 477335244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

442533774 is an admirable number.

It is a super-2 number, since 2×442533774² = 391672282261366152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36877809 + ... + 36877820.

It is an arithmetic number, because the mean of its divisors is an integer number (110633445).

Almost surely, 2^442533774 is an apocalyptic number.

442533774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

442533774 is a wasteful number, since it uses less digits than its factorization.

442533774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73755634.

The product of its digits is 282240, while the sum is 39.

The square root of 442533774 is about 21036.4867313912. The cubic root of 442533774 is about 762.0476716684.

The spelling of 442533774 in words is "four hundred forty-two million, five hundred thirty-three thousand, seven hundred seventy-four".