504440407 has 2 divisors, whose sum is σ = 504440408. Its totient is φ = 504440406.

The previous prime is 504440369. The next prime is 504440423. The reversal of 504440407 is 704044405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 504440407 - 2²³ = 496051799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504440477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252220203 + 252220204.

It is an arithmetic number, because the mean of its divisors is an integer number (252220204).

Almost surely, 2^504440407 is an apocalyptic number.

504440407 is a deficient number, since it is larger than the sum of its proper divisors (1).

504440407 is an equidigital number, since it uses as much as digits as its factorization.

504440407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 504440407 is about 22459.7508223043. The cubic root of 504440407 is about 796.0431736513.

It can be divided in two parts, 5044 and 40407, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 504440407 in words is "five hundred four million, four hundred forty thousand, four hundred seven".