442300032 has 48 divisors (see below), whose sum is σ = 1272767730. Its totient is φ = 147432960.

The previous prime is 442300013. The next prime is 442300039. The reversal of 442300032 is 230003244.

It can be written as a sum of positive squares in only one way, i.e., 417139776 + 25160256 = 20424^2 + 5016^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 442299978 and 442300014.

It is not an unprimeable number, because it can be changed into a prime (442300039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190819 + ... + 193122.

Almost surely, 2^442300032 is an apocalyptic number.

It is an amenable number.

442300032 is an abundant number, since it is smaller than the sum of its proper divisors (830467698).

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

442300032 is a wasteful number, since it uses less digits than its factorization.

442300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383961 (or 383946 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 442300032 is about 21030.9303645844. The cubic root of 442300032 is about 761.9134793368.

Adding to 442300032 its reverse (230003244), we get a palindrome (672303276).

The spelling of 442300032 in words is "four hundred forty-two million, three hundred thousand, thirty-two".