354409909 has 8 divisors (see below), whose sum is σ = 409051008. Its totient is φ = 300771600.

The previous prime is 354409901. The next prime is 354409933. The reversal of 354409909 is 909904453.

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 354409909 - 2³ = 354409901 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 (354409901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249937 + ... + 251350.

It is an arithmetic number, because the mean of its divisors is an integer number (51131376).

Almost surely, 2^354409909 is an apocalyptic number.

It is an amenable number.

354409909 is a deficient number, since it is larger than the sum of its proper divisors (54641099).

354409909 is a wasteful number, since it uses less digits than its factorization.

354409909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501395.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 354409909 is about 18825.7777794172. Note that the first 5 decimals coincide. The cubic root of 354409909 is about 707.6773329659.

The spelling of 354409909 in words is "three hundred fifty-four million, four hundred nine thousand, nine hundred nine".