422023240 has 32 divisors (see below), whose sum is σ = 950189760. Its totient is φ = 168696000.

The previous prime is 422023237. The next prime is 422023253. The reversal of 422023240 is 42320224.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82765 + ... + 87715.

It is an arithmetic number, because the mean of its divisors is an integer number (29693430).

Almost surely, 2^422023240 is an apocalyptic number.

422023240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422023240 is an abundant number, since it is smaller than the sum of its proper divisors (528166520).

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

422023240 is a wasteful number, since it uses less digits than its factorization.

422023240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093 (or 7089 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 422023240 is about 20543.2042291362. The cubic root of 422023240 is about 750.0878356387.

Adding to 422023240 its reverse (42320224), we get a palindrome (464343464).

The spelling of 422023240 in words is "four hundred twenty-two million, twenty-three thousand, two hundred forty".