422402320 has 40 divisors (see below), whose sum is σ = 984829824. Its totient is φ = 168488832.

The previous prime is 422402273. The next prime is 422402329. The reversal of 422402320 is 23204224.

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

It is not an unprimeable number, because it can be changed into a prime (422402329) 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, 22167 + ... + 36553.

Almost surely, 2^422402320 is an apocalyptic number.

422402320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422402320 is an abundant number, since it is smaller than the sum of its proper divisors (562427504).

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

422402320 is a wasteful number, since it uses less digits than its factorization.

422402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14767 (or 14761 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 422402320 is about 20552.4285669602. The cubic root of 422402320 is about 750.3123558197.

Adding to 422402320 its reverse (23204224), we get a palindrome (445606544).

The spelling of 422402320 in words is "four hundred twenty-two million, four hundred two thousand, three hundred twenty".