42343320 has 64 divisors (see below), whose sum is σ = 127617120. Its totient is φ = 11239424.

The previous prime is 42343319. The next prime is 42343337. The reversal of 42343320 is 2334324.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 30154 + ... + 31526.

Almost surely, 2^42343320 is an apocalyptic number.

42343320 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 42343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63808560).

42343320 is an abundant number, since it is smaller than the sum of its proper divisors (85273800).

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

42343320 is a wasteful number, since it uses less digits than its factorization.

42343320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 42343320 is about 6507.1745020400. The cubic root of 42343320 is about 348.5472299271.

Adding to 42343320 its reverse (2334324), we get a palindrome (44677644).

The spelling of 42343320 in words is "forty-two million, three hundred forty-three thousand, three hundred twenty".