442426066 has 16 divisors (see below), whose sum is σ = 670623840. Its totient is φ = 218897280.

The previous prime is 442426051. The next prime is 442426067. The reversal of 442426066 is 660624244.

It is not an unprimeable number, because it can be changed into a prime (442426067) 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, 72610 + ... + 78466.

It is an arithmetic number, because the mean of its divisors is an integer number (41913990).

Almost surely, 2^442426066 is an apocalyptic number.

442426066 is a deficient number, since it is larger than the sum of its proper divisors (228197774).

442426066 is a wasteful number, since it uses less digits than its factorization.

442426066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 442426066 is about 21033.9265473663. The cubic root of 442426066 is about 761.9858418938.

The spelling of 442426066 in words is "four hundred forty-two million, four hundred twenty-six thousand, sixty-six".