442625064 has 128 divisors (see below), whose sum is σ = 1389312000. Its totient is φ = 114580224.

The previous prime is 442625059. The next prime is 442625069. The reversal of 442625064 is 460526244.

It is an interprime number because it is at equal distance from previous prime (442625059) and next prime (442625069).

It is not an unprimeable number, because it can be changed into a prime (442625069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70402 + ... + 76430.

It is an arithmetic number, because the mean of its divisors is an integer number (10854000).

Almost surely, 2^442625064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442625064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694656000).

442625064 is an abundant number, since it is smaller than the sum of its proper divisors (946686936).

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

442625064 is a wasteful number, since it uses less digits than its factorization.

442625064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6087 (or 6083 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 442625064 is about 21038.6564209790. The cubic root of 442625064 is about 762.1000688359.

The spelling of 442625064 in words is "four hundred forty-two million, six hundred twenty-five thousand, sixty-four".