409938941 has 4 divisors (see below), whose sum is σ = 417673692. Its totient is φ = 402204192.

The previous prime is 409938883. The next prime is 409938953. The reversal of 409938941 is 149839904.

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 329567716 + 80371225 = 18154^2 + 8965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409938941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409938961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867296 + ... + 3867401.

It is an arithmetic number, because the mean of its divisors is an integer number (104418423).

Almost surely, 2^409938941 is an apocalyptic number.

It is an amenable number.

409938941 is a deficient number, since it is larger than the sum of its proper divisors (7734751).

409938941 is an equidigital number, since it uses as much as digits as its factorization.

409938941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734750.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 409938941 is about 20246.9489306414. The cubic root of 409938941 is about 742.8590038750.

The spelling of 409938941 in words is "four hundred nine million, nine hundred thirty-eight thousand, nine hundred forty-one".