442230340 has 12 divisors (see below), whose sum is σ = 928683756. Its totient is φ = 176892128.

The previous prime is 442230287. The next prime is 442230389. The reversal of 442230340 is 43032244.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 378613764 = 7976^2 + 19458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055739 + ... + 11055778.

It is an arithmetic number, because the mean of its divisors is an integer number (77390313).

Almost surely, 2^442230340 is an apocalyptic number.

It is an amenable number.

442230340 is an abundant number, since it is smaller than the sum of its proper divisors (486453416).

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

442230340 is a wasteful number, since it uses less digits than its factorization.

442230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22111526 (or 22111524 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 442230340 is about 21029.2734063733. The cubic root of 442230340 is about 761.8734596974.

Adding to 442230340 its reverse (43032244), we get a palindrome (485262584).

The spelling of 442230340 in words is "four hundred forty-two million, two hundred thirty thousand, three hundred forty".