442154234505 has 16 divisors (see below), whose sum is σ = 707586130944. Its totient is φ = 235769139840.

The previous prime is 442154234479. The next prime is 442154234507. The reversal of 442154234505 is 505432451244.

It is not a de Polignac number, because 442154234505 - 2¹⁹ = 442153710217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442154234507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2824489 + ... + 2976918.

It is an arithmetic number, because the mean of its divisors is an integer number (44224133184).

Almost surely, 2^442154234505 is an apocalyptic number.

It is an amenable number.

442154234505 is a deficient number, since it is larger than the sum of its proper divisors (265431896439).

442154234505 is a wasteful number, since it uses less digits than its factorization.

442154234505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806496.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 442154234505 its reverse (505432451244), we get a palindrome (947586685749).

The spelling of 442154234505 in words is "four hundred forty-two billion, one hundred fifty-four million, two hundred thirty-four thousand, five hundred five".