442434322040 has 32 divisors (see below), whose sum is σ = 1018627861680. Its totient is φ = 172858060032.

The previous prime is 442434322009. The next prime is 442434322061. The reversal of 442434322040 is 40223434244.

It is a junction number, because it is equal to n+sod(n) for n = 442434321988 and 442434322006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128612909 + ... + 128616348.

Almost surely, 2^442434322040 is an apocalyptic number.

442434322040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442434322040 is an abundant number, since it is smaller than the sum of its proper divisors (576193539640).

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

442434322040 is a wasteful number, since it uses less digits than its factorization.

442434322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257229311 (or 257229307 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 442434322040 its reverse (40223434244), we get a palindrome (482657756284).

The spelling of 442434322040 in words is "four hundred forty-two billion, four hundred thirty-four million, three hundred twenty-two thousand, forty".