409476404 has 24 divisors (see below), whose sum is σ = 742097160. Its totient is φ = 197464064.

The previous prime is 409476377. The next prime is 409476413. The reversal of 409476404 is 404674904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61653904 + 347822500 = 7852^2 + 18650^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179012 + ... + 181284.

It is an arithmetic number, because the mean of its divisors is an integer number (30920715).

Almost surely, 2^409476404 is an apocalyptic number.

It is an amenable number.

409476404 is a deficient number, since it is larger than the sum of its proper divisors (332620756).

409476404 is a wasteful number, since it uses less digits than its factorization.

409476404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 409476404 is about 20235.5233191534. The cubic root of 409476404 is about 742.5795077106.

The spelling of 409476404 in words is "four hundred nine million, four hundred seventy-six thousand, four hundred four".