504240407 has 4 divisors (see below), whose sum is σ = 550080456. Its totient is φ = 458400360.

The previous prime is 504240397. The next prime is 504240409. The reversal of 504240407 is 704042405.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 504240407 - 2¹⁴ = 504224023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504240409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22920008 + ... + 22920029.

It is an arithmetic number, because the mean of its divisors is an integer number (137520114).

Almost surely, 2^504240407 is an apocalyptic number.

504240407 is a deficient number, since it is larger than the sum of its proper divisors (45840049).

504240407 is a wasteful number, since it uses less digits than its factorization.

504240407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45840048.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 504240407 is about 22455.2979717482. The cubic root of 504240407 is about 795.9379549587.

The spelling of 504240407 in words is "five hundred four million, two hundred forty thousand, four hundred seven".