442124642 has 48 divisors (see below), whose sum is σ = 725850720. Its totient is φ = 201851136.

The previous prime is 442124611. The next prime is 442124671. The reversal of 442124642 is 246421244.

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 23 ways as a sum of consecutive naturals, for example, 4131953 + ... + 4132059.

It is an arithmetic number, because the mean of its divisors is an integer number (15121890).

Almost surely, 2^442124642 is an apocalyptic number.

442124642 is a deficient number, since it is larger than the sum of its proper divisors (283726078).

442124642 is a wasteful number, since it uses less digits than its factorization.

442124642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 284 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 442124642 is about 21026.7601403545. The cubic root of 442124642 is about 761.8127561000.

Adding to 442124642 its reverse (246421244), we get a palindrome (688545886).

The spelling of 442124642 in words is "four hundred forty-two million, one hundred twenty-four thousand, six hundred forty-two".