42321375 has 24 divisors (see below), whose sum is σ = 76293360. Its totient is φ = 22570800.

The previous prime is 42321371. The next prime is 42321397. The reversal of 42321375 is 57312324.

It is not a de Polignac number, because 42321375 - 2² = 42321371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17685 + ... + 19934.

It is an arithmetic number, because the mean of its divisors is an integer number (3178890).

Almost surely, 2^42321375 is an apocalyptic number.

42321375 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42321375 is a deficient number, since it is larger than the sum of its proper divisors (33971985).

42321375 is a wasteful number, since it uses less digits than its factorization.

42321375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37640 (or 37627 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 42321375 is about 6505.4880677779. The cubic root of 42321375 is about 348.4870064119.

Adding to 42321375 its reverse (57312324), we get a palindrome (99633699).

The spelling of 42321375 in words is "forty-two million, three hundred twenty-one thousand, three hundred seventy-five".