408379117 has 4 divisors (see below), whose sum is σ = 432401436. Its totient is φ = 384356800.

The previous prime is 408379109. The next prime is 408379133. The reversal of 408379117 is 711973804.

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 382358916 + 26020201 = 19554^2 + 5101^2 .

It is a cyclic number.

It is not a de Polignac number, because 408379117 - 2³ = 408379109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408379117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408379157) 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, 12011134 + ... + 12011167.

It is an arithmetic number, because the mean of its divisors is an integer number (108100359).

Almost surely, 2^408379117 is an apocalyptic number.

It is an amenable number.

408379117 is a deficient number, since it is larger than the sum of its proper divisors (24022319).

408379117 is a wasteful number, since it uses less digits than its factorization.

408379117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24022318.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 408379117 is about 20208.3922418385. The cubic root of 408379117 is about 741.9156096582.

The spelling of 408379117 in words is "four hundred eight million, three hundred seventy-nine thousand, one hundred seventeen".