409481678 has 8 divisors (see below), whose sum is σ = 629203680. Its totient is φ = 199747120.

The previous prime is 409481671. The next prime is 409481687. The reversal of 409481678 is 876184904.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409481671) 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 3 ways as a sum of consecutive naturals, for example, 2496758 + ... + 2496921.

It is an arithmetic number, because the mean of its divisors is an integer number (78650460).

Almost surely, 2^409481678 is an apocalyptic number.

409481678 is a deficient number, since it is larger than the sum of its proper divisors (219722002).

409481678 is a wasteful number, since it uses less digits than its factorization.

409481678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993722.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 409481678 is about 20235.6536341182. The cubic root of 409481678 is about 742.5826958044.

The spelling of 409481678 in words is "four hundred nine million, four hundred eighty-one thousand, six hundred seventy-eight".