42432313 has 8 divisors (see below), whose sum is σ = 52902720. Its totient is φ = 33064080.

The previous prime is 42432293. The next prime is 42432317. The reversal of 42432313 is 31323424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42432313 - 2⁵ = 42432281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42432317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275458 + ... + 275611.

It is an arithmetic number, because the mean of its divisors is an integer number (6612840).

Almost surely, 2^42432313 is an apocalyptic number.

It is an amenable number.

42432313 is a deficient number, since it is larger than the sum of its proper divisors (10470407).

42432313 is a wasteful number, since it uses less digits than its factorization.

42432313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551087.

The product of its digits is 1728, while the sum is 22.

The square root of 42432313 is about 6514.0089806509. The cubic root of 42432313 is about 348.7912397543.

Adding to 42432313 its reverse (31323424), we get a palindrome (73755737).

Subtracting from 42432313 its reverse (31323424), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 4243 and 2313, that added together give a palindrome (6556).

The spelling of 42432313 in words is "forty-two million, four hundred thirty-two thousand, three hundred thirteen".