422820013 has 16 divisors (see below), whose sum is σ = 527616000. Its totient is φ = 329180400.

The previous prime is 422819963. The next prime is 422820059. The reversal of 422820013 is 310028224.

It is a cyclic number.

It is not a de Polignac number, because 422820013 - 2¹⁷ = 422688941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422820113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139488 + ... + 142486.

It is an arithmetic number, because the mean of its divisors is an integer number (32976000).

Almost surely, 2^422820013 is an apocalyptic number.

It is an amenable number.

422820013 is a deficient number, since it is larger than the sum of its proper divisors (104795987).

422820013 is a wasteful number, since it uses less digits than its factorization.

422820013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 422820013 is about 20562.5877019406. The cubic root of 422820013 is about 750.5595900785.

Adding to 422820013 its reverse (310028224), we get a palindrome (732848237).

The spelling of 422820013 in words is "four hundred twenty-two million, eight hundred twenty thousand, thirteen".