442266626 has 8 divisors (see below), whose sum is σ = 663599424. Its totient is φ = 221066820.

The previous prime is 442266623. The next prime is 442266637. The reversal of 442266626 is 626662244.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 442266626.

It is not an unprimeable number, because it can be changed into a prime (442266623) 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, 24470 + ... + 38513.

It is an arithmetic number, because the mean of its divisors is an integer number (82949928).

Almost surely, 2^442266626 is an apocalyptic number.

442266626 is a deficient number, since it is larger than the sum of its proper divisors (221332798).

442266626 is a wasteful number, since it uses less digits than its factorization.

442266626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66496.

The product of its digits is 165888, while the sum is 38.

The square root of 442266626 is about 21030.1361384086. The cubic root of 442266626 is about 761.8942969412.

The spelling of 442266626 in words is "four hundred forty-two million, two hundred sixty-six thousand, six hundred twenty-six".