442231166 has 64 divisors (see below), whose sum is σ = 809294976. Its totient is φ = 179097600.

The previous prime is 442231157. The next prime is 442231169. The reversal of 442231166 is 661132244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442231169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416276 + ... + 417336.

It is an arithmetic number, because the mean of its divisors is an integer number (12645234).

Almost surely, 2^442231166 is an apocalyptic number.

442231166 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

442231166 is a deficient number, since it is larger than the sum of its proper divisors (367063810).

442231166 is a wasteful number, since it uses less digits than its factorization.

442231166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its digits is 6912, while the sum is 29.

The square root of 442231166 is about 21029.2930456542. The cubic root of 442231166 is about 761.8739340407.

The spelling of 442231166 in words is "four hundred forty-two million, two hundred thirty-one thousand, one hundred sixty-six".