408538867 has 16 divisors (see below), whose sum is σ = 461973600. Its totient is φ = 358007040.

The previous prime is 408538859. The next prime is 408538873. The reversal of 408538867 is 768835804.

It is a cyclic number.

It is not a de Polignac number, because 408538867 - 2³ = 408538859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 408538867.

It is not an unprimeable number, because it can be changed into a prime (408538267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39759 + ... + 48967.

It is an arithmetic number, because the mean of its divisors is an integer number (28873350).

Almost surely, 2^408538867 is an apocalyptic number.

408538867 is a deficient number, since it is larger than the sum of its proper divisors (53434733).

408538867 is a wasteful number, since it uses less digits than its factorization.

408538867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 408538867 is about 20212.3444211699. The cubic root of 408538867 is about 742.0123380516.

The spelling of 408538867 in words is "four hundred eight million, five hundred thirty-eight thousand, eight hundred sixty-seven".