201340422 has 48 divisors (see below), whose sum is σ = 450122400. Its totient is φ = 65001600.

The previous prime is 201340387. The next prime is 201340429. The reversal of 201340422 is 224043102.

201340422 is a `hidden beast` number, since 201 + 3 + 40 + 422 = 666.

It is a super-2 number, since 2×201340422² = 81075931062276168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201340395 and 201340404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109047 + ... + 110877.

It is an arithmetic number, because the mean of its divisors is an integer number (9377550).

Almost surely, 2^201340422 is an apocalyptic number.

201340422 is an abundant number, since it is smaller than the sum of its proper divisors (248781978).

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

201340422 is a wasteful number, since it uses less digits than its factorization.

201340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201340422 is about 14189.4475579566. The cubic root of 201340422 is about 586.1071123224.

Adding to 201340422 its reverse (224043102), we get a palindrome (425383524).

The spelling of 201340422 in words is "two hundred one million, three hundred forty thousand, four hundred twenty-two".