408041831 has 2 divisors, whose sum is σ = 408041832. Its totient is φ = 408041830.

The previous prime is 408041819. The next prime is 408041833. The reversal of 408041831 is 138140804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408041831 - 2²⁶ = 340932967 is a prime.

It is a super-2 number, since 2×408041831² = 332996271691665122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 408041833, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 408041794 and 408041803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408041833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204020915 + 204020916.

It is an arithmetic number, because the mean of its divisors is an integer number (204020916).

Almost surely, 2^408041831 is an apocalyptic number.

408041831 is a deficient number, since it is larger than the sum of its proper divisors (1).

408041831 is an equidigital number, since it uses as much as digits as its factorization.

408041831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 408041831 is about 20200.0453217313. The cubic root of 408041831 is about 741.7113005893.

The spelling of 408041831 in words is "four hundred eight million, forty-one thousand, eight hundred thirty-one".