504123320 has 32 divisors (see below), whose sum is σ = 1145517120. Its totient is φ = 199651200.

The previous prime is 504123293. The next prime is 504123329. The reversal of 504123320 is 23321405.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 504123292 and 504123301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504123329) 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, 58352 + ... + 66431.

It is an arithmetic number, because the mean of its divisors is an integer number (35797410).

Almost surely, 2^504123320 is an apocalyptic number.

It is an amenable number.

504123320 is an abundant number, since it is smaller than the sum of its proper divisors (641393800).

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

504123320 is a wasteful number, since it uses less digits than its factorization.

504123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124895 (or 124891 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 504123320 is about 22452.6907073518. The cubic root of 504123320 is about 795.8763433410.

Adding to 504123320 its reverse (23321405), we get a palindrome (527444725).

The spelling of 504123320 in words is "five hundred four million, one hundred twenty-three thousand, three hundred twenty".