42045322 has 12 divisors (see below), whose sum is σ = 69323058. Its totient is φ = 19111400.

The previous prime is 42045313. The next prime is 42045323. The reversal of 42045322 is 22354024.

It can be written as a sum of positive squares in only one way, i.e., 38081241 + 3964081 = 6171^2 + 1991^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 42045293 and 42045302.

It is not an unprimeable number, because it can be changed into a prime (42045323) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 86629 + ... + 87112.

Almost surely, 2^42045322 is an apocalyptic number.

42045322 is a deficient number, since it is larger than the sum of its proper divisors (27277736).

42045322 is a wasteful number, since it uses less digits than its factorization.

42045322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173765 (or 173754 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42045322 is about 6484.2364238205. The cubic root of 42045322 is about 347.7276516684.

Adding to 42045322 its reverse (22354024), we get a palindrome (64399346).

The spelling of 42045322 in words is "forty-two million, forty-five thousand, three hundred twenty-two".