423020502 has 32 divisors (see below), whose sum is σ = 941320800. Its totient is φ = 140815584.

The previous prime is 423020467. The next prime is 423020551. The reversal of 423020502 is 205020324.

It is a super-2 number, since 2×423020502² = 357892690224664008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38124 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (29416275).

Almost surely, 2^423020502 is an apocalyptic number.

423020502 is an abundant number, since it is smaller than the sum of its proper divisors (518300298).

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

423020502 is a wasteful number, since it uses less digits than its factorization.

423020502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637 (or 10631 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 423020502 is about 20567.4622158399. The cubic root of 423020502 is about 750.6782025369.

Adding to 423020502 its reverse (205020324), we get a palindrome (628040826).

The spelling of 423020502 in words is "four hundred twenty-three million, twenty thousand, five hundred two".