408096581 has 4 divisors (see below), whose sum is σ = 409549164. Its totient is φ = 406644000.

The previous prime is 408096539. The next prime is 408096583. The reversal of 408096581 is 185690804.

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 230007556 + 178089025 = 15166^2 + 13345^2 .

It is a cyclic number.

It is not a de Polignac number, because 408096581 - 2⁶ = 408096517 is a prime.

It is a super-2 number, since 2×408096581² = 333085638847779122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408096583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725870 + ... + 726431.

It is an arithmetic number, because the mean of its divisors is an integer number (102387291).

Almost surely, 2^408096581 is an apocalyptic number.

It is an amenable number.

408096581 is a deficient number, since it is larger than the sum of its proper divisors (1452583).

408096581 is a wasteful number, since it uses less digits than its factorization.

408096581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452582.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 408096581 is about 20201.4004712545. The cubic root of 408096581 is about 741.7444727418.

The spelling of 408096581 in words is "four hundred eight million, ninety-six thousand, five hundred eighty-one".