422828240 has 40 divisors (see below), whose sum is σ = 985436928. Its totient is φ = 168725120.

The previous prime is 422828227. The next prime is 422828243. The reversal of 422828240 is 42828224.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 422828197 and 422828206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422828243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28349 + ... + 40611.

Almost surely, 2^422828240 is an apocalyptic number.

422828240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422828240 is an abundant number, since it is smaller than the sum of its proper divisors (562608688).

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

422828240 is a wasteful number, since it uses less digits than its factorization.

422828240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707 (or 12701 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 422828240 is about 20562.7877487465. The cubic root of 422828240 is about 750.5644580392.

It can be divided in two parts, 42 and 2828240, that added together give a palindrome (2828282).

The spelling of 422828240 in words is "four hundred twenty-two million, eight hundred twenty-eight thousand, two hundred forty".