504400431 has 8 divisors (see below), whose sum is σ = 672637824. Its totient is φ = 336215000.

The previous prime is 504400427. The next prime is 504400487. The reversal of 504400431 is 134004405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504400431 - 2² = 504400427 is a prime.

It is a super-2 number, since 2×504400431² = 508839589585971522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 504400398 and 504400407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504400531) 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, 29806 + ... + 43556.

It is an arithmetic number, because the mean of its divisors is an integer number (84079728).

Almost surely, 2^504400431 is an apocalyptic number.

504400431 is a deficient number, since it is larger than the sum of its proper divisors (168237393).

504400431 is a wasteful number, since it uses less digits than its factorization.

504400431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25981.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 504400431 is about 22458.8608571316. The cubic root of 504400431 is about 796.0221447633.

Adding to 504400431 its reverse (134004405), we get a palindrome (638404836).

The spelling of 504400431 in words is "five hundred four million, four hundred thousand, four hundred thirty-one".