442041618 has 8 divisors (see below), whose sum is σ = 884083248. Its totient is φ = 147347204.

The previous prime is 442041569. The next prime is 442041619. The reversal of 442041618 is 816140244.

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

442041618 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (442041619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36836796 + ... + 36836807.

It is an arithmetic number, because the mean of its divisors is an integer number (110510406).

Almost surely, 2^442041618 is an apocalyptic number.

442041618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442041618 is a wasteful number, since it uses less digits than its factorization.

442041618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73673608.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 442041618 is about 21024.7858015248. The cubic root of 442041618 is about 761.7650676613.

The spelling of 442041618 in words is "four hundred forty-two million, forty-one thousand, six hundred eighteen".