422425406 has 32 divisors (see below), whose sum is σ = 735049728. Its totient is φ = 180465120.

The previous prime is 422425387. The next prime is 422425439. The reversal of 422425406 is 604524224.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7145 + ... + 29931.

It is an arithmetic number, because the mean of its divisors is an integer number (22970304).

Almost surely, 2^422425406 is an apocalyptic number.

422425406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

422425406 is a deficient number, since it is larger than the sum of its proper divisors (312624322).

422425406 is a wasteful number, since it uses less digits than its factorization.

422425406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22856.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 422425406 is about 20552.9901960761. The cubic root of 422425406 is about 750.3260247751.

The spelling of 422425406 in words is "four hundred twenty-two million, four hundred twenty-five thousand, four hundred six".