409445396 has 24 divisors (see below), whose sum is σ = 740785920. Its totient is φ = 197812800.

The previous prime is 409445389. The next prime is 409445419. The reversal of 409445396 is 693544904.

It is a happy number.

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, 92195 + ... + 96533.

It is an arithmetic number, because the mean of its divisors is an integer number (30866080).

Almost surely, 2^409445396 is an apocalyptic number.

It is an amenable number.

409445396 is a deficient number, since it is larger than the sum of its proper divisors (331340524).

409445396 is a wasteful number, since it uses less digits than its factorization.

409445396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135 (or 5133 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 409445396 is about 20234.7571272798. The cubic root of 409445396 is about 742.5607630517.

The spelling of 409445396 in words is "four hundred nine million, four hundred forty-five thousand, three hundred ninety-six".