422860240 has 80 divisors (see below), whose sum is σ = 1080555840. Its totient is φ = 152616960.

The previous prime is 422860231. The next prime is 422860241. The reversal of 422860240 is 42068224.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 422860199 and 422860208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422860241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120592 + ... + 124048.

It is an arithmetic number, because the mean of its divisors is an integer number (13506948).

Almost surely, 2^422860240 is an apocalyptic number.

422860240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422860240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540277920).

422860240 is an abundant number, since it is smaller than the sum of its proper divisors (657695600).

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

422860240 is a wasteful number, since it uses less digits than its factorization.

422860240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 422860240 is about 20563.5658386380. The cubic root of 422860240 is about 750.5833920133.

The spelling of 422860240 in words is "four hundred twenty-two million, eight hundred sixty thousand, two hundred forty".