409994473 has 8 divisors (see below), whose sum is σ = 468714240. Its totient is φ = 351312000.

The previous prime is 409994471. The next prime is 409994477. The reversal of 409994473 is 374499904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409994473 - 2¹ = 409994471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409994471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20688 + ... + 35326.

It is an arithmetic number, because the mean of its divisors is an integer number (58589280).

Almost surely, 2^409994473 is an apocalyptic number.

It is an amenable number.

409994473 is a deficient number, since it is larger than the sum of its proper divisors (58719767).

409994473 is a wasteful number, since it uses less digits than its factorization.

409994473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18647.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 409994473 is about 20248.3202513196. The cubic root of 409994473 is about 742.8925459300.

The spelling of 409994473 in words is "four hundred nine million, nine hundred ninety-four thousand, four hundred seventy-three".