408601439 has 2 divisors, whose sum is σ = 408601440. Its totient is φ = 408601438.

The previous prime is 408601337. The next prime is 408601451. The reversal of 408601439 is 934106804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408601439 - 2¹⁶ = 408535903 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 408601399 and 408601408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408601489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204300719 + 204300720.

It is an arithmetic number, because the mean of its divisors is an integer number (204300720).

Almost surely, 2^408601439 is an apocalyptic number.

408601439 is a deficient number, since it is larger than the sum of its proper divisors (1).

408601439 is an equidigital number, since it uses as much as digits as its factorization.

408601439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 408601439 is about 20213.8922278714. The cubic root of 408601439 is about 742.0502184343.

The spelling of 408601439 in words is "four hundred eight million, six hundred one thousand, four hundred thirty-nine".