422135152240 has 40 divisors (see below), whose sum is σ = 1015307828640. Its totient is φ = 163031506176.

The previous prime is 422135152237. The next prime is 422135152247. The reversal of 422135152240 is 42251531224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422135152247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90975084 + ... + 90979723.

It is an arithmetic number, because the mean of its divisors is an integer number (25382695716).

Almost surely, 2^422135152240 is an apocalyptic number.

422135152240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422135152240 is an abundant number, since it is smaller than the sum of its proper divisors (593172676400).

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

422135152240 is a wasteful number, since it uses less digits than its factorization.

422135152240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181954849 (or 181954843 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 422135152240 its reverse (42251531224), we get a palindrome (464386683464).

The spelling of 422135152240 in words is "four hundred twenty-two billion, one hundred thirty-five million, one hundred fifty-two thousand, two hundred forty".