442133442 has 24 divisors (see below), whose sum is σ = 960714300. Its totient is φ = 146953440.

The previous prime is 442133437. The next prime is 442133491. The reversal of 442133442 is 244331244.

It is a happy number.

442133442 is a `hidden beast` number, since 4 + 4 + 213 + 3 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 441882441 + 251001 = 21021^2 + 501^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28909 + ... + 41472.

Almost surely, 2^442133442 is an apocalyptic number.

442133442 is an abundant number, since it is smaller than the sum of its proper divisors (518580858).

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

442133442 is a wasteful number, since it uses less digits than its factorization.

442133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70738 (or 70735 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 442133442 is about 21026.9693964680. The cubic root of 442133442 is about 761.8178104121.

Adding to 442133442 its reverse (244331244), we get a palindrome (686464686).

The spelling of 442133442 in words is "four hundred forty-two million, one hundred thirty-three thousand, four hundred forty-two".