422346420 has 48 divisors (see below), whose sum is σ = 1313968320. Its totient is φ = 112625568.

The previous prime is 422346373. The next prime is 422346451. The reversal of 422346420 is 24643224.

422346420 is a `hidden beast` number, since 4 + 2 + 234 + 6 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390522 + ... + 391601.

It is an arithmetic number, because the mean of its divisors is an integer number (27374340).

Almost surely, 2^422346420 is an apocalyptic number.

It is an amenable number.

422346420 is an abundant number, since it is smaller than the sum of its proper divisors (891621900).

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

422346420 is a wasteful number, since it uses less digits than its factorization.

422346420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782141 (or 782133 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 422346420 is about 20551.0685853558. The cubic root of 422346420 is about 750.2792560085.

Adding to 422346420 its reverse (24643224), we get a palindrome (446989644).

The spelling of 422346420 in words is "four hundred twenty-two million, three hundred forty-six thousand, four hundred twenty".