422351780 has 24 divisors (see below), whose sum is σ = 889750008. Its totient is φ = 168405248.

The previous prime is 422351759. The next prime is 422351827. The reversal of 422351780 is 87153224.

It can be written as a sum of positive squares in 4 ways, for example, as 45914176 + 376437604 = 6776^2 + 19402^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26969 + ... + 39648.

It is an arithmetic number, because the mean of its divisors is an integer number (37072917).

Almost surely, 2^422351780 is an apocalyptic number.

It is an amenable number.

422351780 is an abundant number, since it is smaller than the sum of its proper divisors (467398228).

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

422351780 is a wasteful number, since it uses less digits than its factorization.

422351780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66943 (or 66941 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 422351780 is about 20551.1989917863. The cubic root of 422351780 is about 750.2824299274.

The spelling of 422351780 in words is "four hundred twenty-two million, three hundred fifty-one thousand, seven hundred eighty".