422243240 has 32 divisors (see below), whose sum is σ = 950676480. Its totient is φ = 168785472.

The previous prime is 422243233. The next prime is 422243257. The reversal of 422243240 is 42342224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85889 + ... + 90671.

It is an arithmetic number, because the mean of its divisors is an integer number (29708640).

Almost surely, 2^422243240 is an apocalyptic number.

422243240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422243240 is an abundant number, since it is smaller than the sum of its proper divisors (528433240).

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

422243240 is a wasteful number, since it uses less digits than its factorization.

422243240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001 (or 6997 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 422243240 is about 20548.5581002658. The cubic root of 422243240 is about 750.2181528359.

Adding to 422243240 its reverse (42342224), we get a palindrome (464585464).

The spelling of 422243240 in words is "four hundred twenty-two million, two hundred forty-three thousand, two hundred forty".