409964499 has 12 divisors (see below), whose sum is σ = 676766896. Its totient is φ = 234265392.

The previous prime is 409964447. The next prime is 409964507. The reversal of 409964499 is 994469904.

409964499 is a `hidden beast` number, since 4 + 0 + 99 + 64 + 499 = 666.

It is not a de Polignac number, because 409964499 - 2⁹ = 409963987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409964419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3253624 + ... + 3253749.

Almost surely, 2^409964499 is an apocalyptic number.

409964499 is a deficient number, since it is larger than the sum of its proper divisors (266802397).

409964499 is a wasteful number, since it uses less digits than its factorization.

409964499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507386 (or 6507383 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 409964499 is about 20247.5800776290. The cubic root of 409964499 is about 742.8744416178.

The spelling of 409964499 in words is "four hundred nine million, nine hundred sixty-four thousand, four hundred ninety-nine".