409415943 has 8 divisors (see below), whose sum is σ = 558583168. Its totient is φ = 266596344.

The previous prime is 409415921. The next prime is 409415959. The reversal of 409415943 is 349514904.

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

It is not a de Polignac number, because 409415943 - 2⁸ = 409415687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409415983) 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 7 ways as a sum of consecutive naturals, for example, 1586755 + ... + 1587012.

It is an arithmetic number, because the mean of its divisors is an integer number (69822896).

Almost surely, 2^409415943 is an apocalyptic number.

409415943 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

409415943 is a deficient number, since it is larger than the sum of its proper divisors (149167225).

409415943 is a wasteful number, since it uses less digits than its factorization.

409415943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173813.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 409415943 is about 20234.0293317965. The cubic root of 409415943 is about 742.5429575301.

The spelling of 409415943 in words is "four hundred nine million, four hundred fifteen thousand, nine hundred forty-three".