504397620 has 108 divisors (see below), whose sum is σ = 1553069700. Its totient is φ = 132507648.

The previous prime is 504397603. The next prime is 504397627. The reversal of 504397620 is 26793405.

504397620 is a `hidden beast` number, since 504 + 3 + 97 + 62 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 244672164 + 259725456 = 15642^2 + 16116^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504397627) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1123156 + ... + 1123604.

It is an arithmetic number, because the mean of its divisors is an integer number (14380275).

Almost surely, 2^504397620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504397620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776534850).

504397620 is an abundant number, since it is smaller than the sum of its proper divisors (1048672080).

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

504397620 is a wasteful number, since it uses less digits than its factorization.

504397620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 504397620 is about 22458.7982759541. The cubic root of 504397620 is about 796.0206660291.

The spelling of 504397620 in words is "five hundred four million, three hundred ninety-seven thousand, six hundred twenty".