442133330 has 16 divisors (see below), whose sum is σ = 807050304. Its totient is φ = 174362160.

The previous prime is 442133327. The next prime is 442133339. The reversal of 442133330 is 33331244.

It is a junction number, because it is equal to n+sod(n) for n = 442133296 and 442133305.

It is not an unprimeable number, because it can be changed into a prime (442133339) 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, 310652 + ... + 312071.

It is an arithmetic number, because the mean of its divisors is an integer number (50440644).

Almost surely, 2^442133330 is an apocalyptic number.

442133330 is a deficient number, since it is larger than the sum of its proper divisors (364916974).

442133330 is a wasteful number, since it uses less digits than its factorization.

442133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622801.

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

The square root of 442133330 is about 21026.9667332214. The cubic root of 442133330 is about 761.8177460849.

Adding to 442133330 its reverse (33331244), we get a palindrome (475464574).

The spelling of 442133330 in words is "four hundred forty-two million, one hundred thirty-three thousand, three hundred thirty".