504440406 has 16 divisors (see below), whose sum is σ = 1120978800. Its totient is φ = 168146784.

The previous prime is 504440369. The next prime is 504440407. The reversal of 504440406 is 604044405.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 504440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504440407) 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, 4670691 + ... + 4670798.

It is an arithmetic number, because the mean of its divisors is an integer number (70061175).

Almost surely, 2^504440406 is an apocalyptic number.

504440406 is an abundant number, since it is smaller than the sum of its proper divisors (616538394).

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

504440406 is a wasteful number, since it uses less digits than its factorization.

504440406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341500 (or 9341494 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 504440406 is about 22459.7508000423. The cubic root of 504440406 is about 796.0431731253.

The spelling of 504440406 in words is "five hundred four million, four hundred forty thousand, four hundred six".