422540322 has 8 divisors (see below), whose sum is σ = 845080656. Its totient is φ = 140846772.

The previous prime is 422540311. The next prime is 422540329. The reversal of 422540322 is 223045224.

It is a happy number.

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

422540322 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 422540292 and 422540301.

It is not an unprimeable number, because it can be changed into a prime (422540329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35211688 + ... + 35211699.

It is an arithmetic number, because the mean of its divisors is an integer number (105635082).

Almost surely, 2^422540322 is an apocalyptic number.

422540322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

422540322 is a wasteful number, since it uses less digits than its factorization.

422540322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70423392.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 422540322 is about 20555.7856089229. The cubic root of 422540322 is about 750.3940578106.

Adding to 422540322 its reverse (223045224), we get a palindrome (645585546).

The spelling of 422540322 in words is "four hundred twenty-two million, five hundred forty thousand, three hundred twenty-two".