422420448 has 24 divisors (see below), whose sum is σ = 1108853928. Its totient is φ = 140806784.

The previous prime is 422420447. The next prime is 422420459. The reversal of 422420448 is 844024224.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422420447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200011 + ... + 2200202.

It is an arithmetic number, because the mean of its divisors is an integer number (46202247).

Almost surely, 2^422420448 is an apocalyptic number.

422420448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

422420448 is an abundant number, since it is smaller than the sum of its proper divisors (686433480).

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

422420448 is a wasteful number, since it uses less digits than its factorization.

422420448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400226 (or 4400218 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The square root of 422420448 is about 20552.8695806693. The cubic root of 422420448 is about 750.3230892422.

The spelling of 422420448 in words is "four hundred twenty-two million, four hundred twenty thousand, four hundred forty-eight".