442313660 has 24 divisors (see below), whose sum is σ = 929257056. Its totient is φ = 176849600.

The previous prime is 442313657. The next prime is 442313671. The reversal of 442313660 is 66313244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79985 + ... + 85335.

It is an arithmetic number, because the mean of its divisors is an integer number (38719044).

Almost surely, 2^442313660 is an apocalyptic number.

It is an amenable number.

442313660 is an abundant number, since it is smaller than the sum of its proper divisors (486943396).

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

442313660 is a wasteful number, since it uses less digits than its factorization.

442313660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493 (or 9491 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 442313660 is about 21031.2543610694. The cubic root of 442313660 is about 761.9213045305.

The spelling of 442313660 in words is "four hundred forty-two million, three hundred thirteen thousand, six hundred sixty".