409103946 has 40 divisors (see below), whose sum is σ = 970625700. Its totient is φ = 128345472.

The previous prime is 409103941. The next prime is 409103969. The reversal of 409103946 is 649301904.

It can be written as a sum of positive squares in 2 ways, for example, as 317231721 + 91872225 = 17811^2 + 9585^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 409103946.

It is not an unprimeable number, because it can be changed into a prime (409103941) 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 19 ways as a sum of consecutive naturals, for example, 71521 + ... + 77028.

Almost surely, 2^409103946 is an apocalyptic number.

409103946 is an abundant number, since it is smaller than the sum of its proper divisors (561521754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409103946 is a wasteful number, since it uses less digits than its factorization.

409103946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148580 (or 148571 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 409103946 is about 20226.3181523479. The cubic root of 409103946 is about 742.3542903546.

The spelling of 409103946 in words is "four hundred nine million, one hundred three thousand, nine hundred forty-six".