423720504 has 32 divisors (see below), whose sum is σ = 1177002000. Its totient is φ = 141240096.

The previous prime is 423720491. The next prime is 423720523. The reversal of 423720504 is 405027324.

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 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, 980619 + ... + 981050.

Almost surely, 2^423720504 is an apocalyptic number.

It is an amenable number.

423720504 is an abundant number, since it is smaller than the sum of its proper divisors (753281496).

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

423720504 is a wasteful number, since it uses less digits than its factorization.

423720504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961684 (or 1961674 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 423720504 is about 20584.4724003313. The cubic root of 423720504 is about 751.0920411564.

Adding to 423720504 its reverse (405027324), we get a palindrome (828747828).

The spelling of 423720504 in words is "four hundred twenty-three million, seven hundred twenty thousand, five hundred four".