442101404 has 48 divisors (see below), whose sum is σ = 832967520. Its totient is φ = 204906240.

The previous prime is 442101403. The next prime is 442101427. The reversal of 442101404 is 404101244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442101403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303542 + ... + 304994.

It is an arithmetic number, because the mean of its divisors is an integer number (17353490).

Almost surely, 2^442101404 is an apocalyptic number.

It is an amenable number.

442101404 is a deficient number, since it is larger than the sum of its proper divisors (390866116).

442101404 is a wasteful number, since it uses less digits than its factorization.

442101404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 442101404 is about 21026.2075515296. The cubic root of 442101404 is about 761.7994089475.

Adding to 442101404 its reverse (404101244), we get a palindrome (846202648).

The spelling of 442101404 in words is "four hundred forty-two million, one hundred one thousand, four hundred four".