422820670 has 16 divisors (see below), whose sum is σ = 761371488. Its totient is φ = 169062880.

The previous prime is 422820649. The next prime is 422820679. The reversal of 422820670 is 76028224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422820679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25647 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (47585718).

Almost surely, 2^422820670 is an apocalyptic number.

422820670 is a deficient number, since it is larger than the sum of its proper divisors (338550818).

422820670 is a wasteful number, since it uses less digits than its factorization.

422820670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16355.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 422820670 is about 20562.6036775502. The cubic root of 422820670 is about 750.5599788313.

Adding to 422820670 its reverse (76028224), we get a palindrome (498848894).

The spelling of 422820670 in words is "four hundred twenty-two million, eight hundred twenty thousand, six hundred seventy".