442123306 has 8 divisors (see below), whose sum is σ = 663292224. Its totient is φ = 221025900.

The previous prime is 442123261. The next prime is 442123307. The reversal of 442123306 is 603321244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (442123307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001 + ... + 29803.

It is an arithmetic number, because the mean of its divisors is an integer number (82911528).

Almost surely, 2^442123306 is an apocalyptic number.

442123306 is a deficient number, since it is larger than the sum of its proper divisors (221168918).

442123306 is a wasteful number, since it uses less digits than its factorization.

442123306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35756.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 442123306 is about 21026.7283712897. The cubic root of 442123306 is about 761.8119887577.

The spelling of 442123306 in words is "four hundred forty-two million, one hundred twenty-three thousand, three hundred six".