340075409 has 8 divisors (see below), whose sum is σ = 350688000. Its totient is φ = 329603616.

The previous prime is 340075403. The next prime is 340075453. The reversal of 340075409 is 904570043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340075409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340075403) 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, 30284 + ... + 39965.

It is an arithmetic number, because the mean of its divisors is an integer number (43836000).

Almost surely, 2^340075409 is an apocalyptic number.

It is an amenable number.

340075409 is a deficient number, since it is larger than the sum of its proper divisors (10612591).

340075409 is a wasteful number, since it uses less digits than its factorization.

340075409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70399.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 340075409 is about 18441.1336148296. The cubic root of 340075409 is about 698.0048008307.

The spelling of 340075409 in words is "three hundred forty million, seventy-five thousand, four hundred nine".