442713618 has 24 divisors (see below), whose sum is σ = 966770688. Its totient is φ = 146408472.

The previous prime is 442713589. The next prime is 442713619. The reversal of 442713618 is 816317244.

442713618 is a `hidden beast` number, since 4 + 4 + 27 + 13 + 618 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442713619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94546 + ... + 99117.

It is an arithmetic number, because the mean of its divisors is an integer number (40282112).

Almost surely, 2^442713618 is an apocalyptic number.

442713618 is an abundant number, since it is smaller than the sum of its proper divisors (524057070).

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

442713618 is a wasteful number, since it uses less digits than its factorization.

442713618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193798 (or 193795 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 442713618 is about 21040.7608702727. The cubic root of 442713618 is about 762.1508887547.

The spelling of 442713618 in words is "four hundred forty-two million, seven hundred thirteen thousand, six hundred eighteen".