422013520 has 40 divisors (see below), whose sum is σ = 987231456. Its totient is φ = 167764608.

The previous prime is 422013461. The next prime is 422013521. The reversal of 422013520 is 25310224.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×422013520² = 356190822125580800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422013521) by changing a digit.

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, 3142 + ... + 29221.

Almost surely, 2^422013520 is an apocalyptic number.

422013520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422013520 is an abundant number, since it is smaller than the sum of its proper divisors (565217936).

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

422013520 is a wasteful number, since it uses less digits than its factorization.

422013520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32539 (or 32533 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 422013520 is about 20542.9676531897. The cubic root of 422013520 is about 750.0820769434.

Adding to 422013520 its reverse (25310224), we get a palindrome (447323744).

The spelling of 422013520 in words is "four hundred twenty-two million, thirteen thousand, five hundred twenty".