422332540 has 48 divisors (see below), whose sum is σ = 1018809792. Its totient is φ = 144055296.

The previous prime is 422332529. The next prime is 422332577. The reversal of 422332540 is 45233224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19924 + ... + 35236.

It is an arithmetic number, because the mean of its divisors is an integer number (21225204).

Almost surely, 2^422332540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422332540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (509404896).

422332540 is an abundant number, since it is smaller than the sum of its proper divisors (596477252).

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

422332540 is a wasteful number, since it uses less digits than its factorization.

422332540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526 (or 15524 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 422332540 is about 20550.7308872458. The cubic root of 422332540 is about 750.2710368550.

Adding to 422332540 its reverse (45233224), we get a palindrome (467565764).

It can be divided in two parts, 4223 and 32540, that added together give a palindrome (36763).

The spelling of 422332540 in words is "four hundred twenty-two million, three hundred thirty-two thousand, five hundred forty".