42447330 has 96 divisors (see below), whose sum is σ = 117786240. Its totient is φ = 10575360.

The previous prime is 42447323. The next prime is 42447331. The reversal of 42447330 is 3374424.

42447330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42447294 and 42447303.

It is not an unprimeable number, because it can be changed into a prime (42447331) 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 47 ways as a sum of consecutive naturals, for example, 176010 + ... + 176250.

It is an arithmetic number, because the mean of its divisors is an integer number (1226940).

Almost surely, 2^42447330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42447330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58893120).

42447330 is an abundant number, since it is smaller than the sum of its proper divisors (75338910).

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

42447330 is a wasteful number, since it uses less digits than its factorization.

42447330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 42447330 is about 6515.1615482657. The cubic root of 42447330 is about 348.8323812014.

The spelling of 42447330 in words is "forty-two million, four hundred forty-seven thousand, three hundred thirty".