422540262 has 48 divisors (see below), whose sum is σ = 926911440. Its totient is φ = 139104000.

The previous prime is 422540249. The next prime is 422540273. The reversal of 422540262 is 262045224.

It is a happy number.

It is a super-2 number, since 2×422540262² = 357080546022057288, which contains 22 as substring.

It is a congruent number.

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, 702762 + ... + 703362.

It is an arithmetic number, because the mean of its divisors is an integer number (19310655).

Almost surely, 2^422540262 is an apocalyptic number.

422540262 is an abundant number, since it is smaller than the sum of its proper divisors (504371178).

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

422540262 is a wasteful number, since it uses less digits than its factorization.

422540262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 422540262 is about 20555.7841494797. The cubic root of 422540262 is about 750.3940222923.

Adding to 422540262 its reverse (262045224), we get a palindrome (684585486).

The spelling of 422540262 in words is "four hundred twenty-two million, five hundred forty thousand, two hundred sixty-two".