42040322 has 4 divisors (see below), whose sum is σ = 63060486. Its totient is φ = 21020160.

The previous prime is 42040321. The next prime is 42040351. The reversal of 42040322 is 22304024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24492601 + 17547721 = 4949^2 + 4189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42040322.

It is not an unprimeable number, because it can be changed into a prime (42040321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510079 + ... + 10510082.

Almost surely, 2^42040322 is an apocalyptic number.

42040322 is a deficient number, since it is larger than the sum of its proper divisors (21020164).

42040322 is a wasteful number, since it uses less digits than its factorization.

42040322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21020163.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42040322 is about 6483.8508619492. The cubic root of 42040322 is about 347.7138672797.

Adding to 42040322 its reverse (22304024), we get a palindrome (64344346).

The spelling of 42040322 in words is "forty-two million, forty thousand, three hundred twenty-two".