42323320 has 64 divisors (see below), whose sum is σ = 103320000. Its totient is φ = 15510528.

The previous prime is 42323291. The next prime is 42323321. The reversal of 42323320 is 2332324.

42323320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42323321) 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 15 ways as a sum of consecutive naturals, for example, 103276 + ... + 103684.

It is an arithmetic number, because the mean of its divisors is an integer number (1614375).

Almost surely, 2^42323320 is an apocalyptic number.

42323320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42323320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51660000).

42323320 is an abundant number, since it is smaller than the sum of its proper divisors (60996680).

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

42323320 is a wasteful number, since it uses less digits than its factorization.

42323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 42323320 is about 6505.6375552285. The cubic root of 42323320 is about 348.4923449030.

Adding to 42323320 its reverse (2332324), we get a palindrome (44655644).

The spelling of 42323320 in words is "forty-two million, three hundred twenty-three thousand, three hundred twenty".