422540235 has 24 divisors (see below), whose sum is σ = 788742864. Its totient is φ = 208019520.

The previous prime is 422540213. The next prime is 422540243. The reversal of 422540235 is 532045224.

It is a happy number.

422540235 is a `hidden beast` number, since 4 + 225 + 402 + 35 = 666.

It is not a de Polignac number, because 422540235 - 2⁵ = 422540203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422540199 and 422540208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360561 + ... + 361730.

It is an arithmetic number, because the mean of its divisors is an integer number (32864286).

Almost surely, 2^422540235 is an apocalyptic number.

422540235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

422540235 is a deficient number, since it is larger than the sum of its proper divisors (366202629).

422540235 is a wasteful number, since it uses less digits than its factorization.

422540235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722315 (or 722312 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 422540235 is about 20555.7834927302. The cubic root of 422540235 is about 750.3940063091.

Adding to 422540235 its reverse (532045224), we get a palindrome (954585459).

The spelling of 422540235 in words is "four hundred twenty-two million, five hundred forty thousand, two hundred thirty-five".