442130064 has 40 divisors (see below), whose sum is σ = 1158265152. Its totient is φ = 145299840.

The previous prime is 442130023. The next prime is 442130069. The reversal of 442130064 is 460031244.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (442130069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61459 + ... + 68274.

Almost surely, 2^442130064 is an apocalyptic number.

It is an amenable number.

442130064 is an abundant number, since it is smaller than the sum of its proper divisors (716135088).

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

442130064 is a wasteful number, since it uses less digits than its factorization.

442130064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129815 (or 129809 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 442130064 is about 21026.8890709016. The cubic root of 442130064 is about 761.8158702534.

The spelling of 442130064 in words is "four hundred forty-two million, one hundred thirty thousand, sixty-four".