442277866 has 16 divisors (see below), whose sum is σ = 678119040. Its totient is φ = 216290880.

The previous prime is 442277863. The next prime is 442277903. The reversal of 442277866 is 668772244.

It is not an unprimeable number, because it can be changed into a prime (442277863) 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, 3826 + ... + 29986.

It is an arithmetic number, because the mean of its divisors is an integer number (42382440).

Almost surely, 2^442277866 is an apocalyptic number.

442277866 is a deficient number, since it is larger than the sum of its proper divisors (235841174).

442277866 is a wasteful number, since it uses less digits than its factorization.

442277866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26349.

The product of its digits is 903168, while the sum is 46.

The square root of 442277866 is about 21030.4033722608. The cubic root of 442277866 is about 761.9007512826.

The spelling of 442277866 in words is "four hundred forty-two million, two hundred seventy-seven thousand, eight hundred sixty-six".