442422404390 has 16 divisors (see below), whose sum is σ = 797052234240. Its totient is φ = 176815204800.

The previous prime is 442422404383. The next prime is 442422404497. The reversal of 442422404390 is 93404224244.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19207535 + ... + 19230554.

It is an arithmetic number, because the mean of its divisors is an integer number (49815764640).

Almost surely, 2^442422404390 is an apocalyptic number.

442422404390 is a deficient number, since it is larger than the sum of its proper divisors (354629829850).

442422404390 is a wasteful number, since it uses less digits than its factorization.

442422404390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38439247.

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 442422404390 in words is "four hundred forty-two billion, four hundred twenty-two million, four hundred four thousand, three hundred ninety".