442420344232 has 32 divisors (see below), whose sum is σ = 835802541000. Its totient is φ = 219542978304.

The previous prime is 442420344221. The next prime is 442420344239. The reversal of 442420344232 is 232443024244.

It can be written as a sum of positive squares in 4 ways, for example, as 90802179556 + 351618164676 = 301334^2 + 592974^2 .

It is a super-2 number, since 2×442420344232² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442420344239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864894 + ... + 1277842.

Almost surely, 2^442420344232 is an apocalyptic number.

It is an amenable number.

442420344232 is a deficient number, since it is larger than the sum of its proper divisors (393382196768).

442420344232 is a wasteful number, since it uses less digits than its factorization.

442420344232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413965 (or 413961 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 442420344232 its reverse (232443024244), we get a palindrome (674863368476).

The spelling of 442420344232 in words is "four hundred forty-two billion, four hundred twenty million, three hundred forty-four thousand, two hundred thirty-two".