442313330 has 16 divisors (see below), whose sum is σ = 815583384. Its totient is φ = 172609920.

The previous prime is 442313329. The next prime is 442313341. The reversal of 442313330 is 33313244.

It can be written as a sum of positive squares in 4 ways, for example, as 378808369 + 63504961 = 19463^2 + 7969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442313296 and 442313305.

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, 538997 + ... + 539816.

Almost surely, 2^442313330 is an apocalyptic number.

442313330 is a deficient number, since it is larger than the sum of its proper divisors (373270054).

442313330 is a wasteful number, since it uses less digits than its factorization.

442313330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078861.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 442313330 is about 21031.2465156015. The cubic root of 442313330 is about 761.9211150464.

Adding to 442313330 its reverse (33313244), we get a palindrome (475626574).

The spelling of 442313330 in words is "four hundred forty-two million, three hundred thirteen thousand, three hundred thirty".