422345280 has 224 divisors, whose sum is σ = 1623096576. Its totient is φ = 90832896.

The previous prime is 422345279. The next prime is 422345291. The reversal of 422345280 is 82543224.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112392 + ... + 116088.

Almost surely, 2^422345280 is an apocalyptic number.

422345280 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 422345280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811548288).

422345280 is an abundant number, since it is smaller than the sum of its proper divisors (1200751296).

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

422345280 is a wasteful number, since it uses less digits than its factorization.

422345280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741 (or 3731 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 422345280 is about 20551.0408495531. The cubic root of 422345280 is about 750.2785809552.

The spelling of 422345280 in words is "four hundred twenty-two million, three hundred forty-five thousand, two hundred eighty".