42322530 has 64 divisors (see below), whose sum is σ = 107412480. Its totient is φ = 10650816.

The previous prime is 42322477. The next prime is 42322559. The reversal of 42322530 is 3522324.

It is a junction number, because it is equal to n+sod(n) for n = 42322497 and 42322506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56901 + ... + 57639.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^42322530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42322530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53706240).

42322530 is an abundant number, since it is smaller than the sum of its proper divisors (65089950).

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

42322530 is a wasteful number, since it uses less digits than its factorization.

42322530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 42322530 is about 6505.5768383749. The cubic root of 42322530 is about 348.4901765896.

Adding to 42322530 its reverse (3522324), we get a palindrome (45844854).

The spelling of 42322530 in words is "forty-two million, three hundred twenty-two thousand, five hundred thirty".