408968413 has 4 divisors (see below), whose sum is σ = 467392480. Its totient is φ = 350544348.

The previous prime is 408968387. The next prime is 408968447. The reversal of 408968413 is 314869804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-408968413 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 408968413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408968453) 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, 29212023 + ... + 29212036.

It is an arithmetic number, because the mean of its divisors is an integer number (116848120).

Almost surely, 2^408968413 is an apocalyptic number.

It is an amenable number.

408968413 is a deficient number, since it is larger than the sum of its proper divisors (58424067).

408968413 is an equidigital number, since it uses as much as digits as its factorization.

408968413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58424066.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 408968413 is about 20222.9674627637. The cubic root of 408968413 is about 742.2723025388.

The spelling of 408968413 in words is "four hundred eight million, nine hundred sixty-eight thousand, four hundred thirteen".