408389041 has 4 divisors (see below), whose sum is σ = 408918132. Its totient is φ = 407859952.

The previous prime is 408389027. The next prime is 408389087. The reversal of 408389041 is 140983804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47541025 + 360848016 = 6895^2 + 18996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408389041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408380041) 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, 263386 + ... + 264931.

It is an arithmetic number, because the mean of its divisors is an integer number (102229533).

Almost surely, 2^408389041 is an apocalyptic number.

It is an amenable number.

408389041 is a deficient number, since it is larger than the sum of its proper divisors (529091).

408389041 is an equidigital number, since it uses as much as digits as its factorization.

408389041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529090.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 408389041 is about 20208.6377818991. The cubic root of 408389041 is about 741.9216193606.

The spelling of 408389041 in words is "four hundred eight million, three hundred eighty-nine thousand, forty-one".