422854820 has 12 divisors (see below), whose sum is σ = 887995164. Its totient is φ = 169141920.

The previous prime is 422854777. The next prime is 422854841. The reversal of 422854820 is 28458224.

It can be written as a sum of positive squares in 2 ways, for example, as 202094656 + 220760164 = 14216^2 + 14858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10571351 + ... + 10571390.

It is an arithmetic number, because the mean of its divisors is an integer number (73999597).

Almost surely, 2^422854820 is an apocalyptic number.

It is an amenable number.

422854820 is an abundant number, since it is smaller than the sum of its proper divisors (465140344).

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

422854820 is a wasteful number, since it uses less digits than its factorization.

422854820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21142750 (or 21142748 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 422854820 is about 20563.4340517337. The cubic root of 422854820 is about 750.5801851386.

The spelling of 422854820 in words is "four hundred twenty-two million, eight hundred fifty-four thousand, eight hundred twenty".