408023091 has 12 divisors (see below), whose sum is σ = 673562032. Its totient is φ = 233156016.

The previous prime is 408023089. The next prime is 408023093. The reversal of 408023091 is 190320804.

It is an interprime number because it is at equal distance from previous prime (408023089) and next prime (408023093).

It is not a de Polignac number, because 408023091 - 2¹ = 408023089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408023093) 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 11 ways as a sum of consecutive naturals, for example, 3238216 + ... + 3238341.

Almost surely, 2^408023091 is an apocalyptic number.

408023091 is a deficient number, since it is larger than the sum of its proper divisors (265538941).

408023091 is a wasteful number, since it uses less digits than its factorization.

408023091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476570 (or 6476567 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 408023091 is about 20199.5814560599. The cubic root of 408023091 is about 741.6999456402.

Adding to 408023091 its reverse (190320804), we get a palindrome (598343895).

The spelling of 408023091 in words is "four hundred eight million, twenty-three thousand, ninety-one".