340909487 has 8 divisors (see below), whose sum is σ = 343332000. Its totient is φ = 338494464.

The previous prime is 340909477. The next prime is 340909559. The reversal of 340909487 is 784909043.

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 340909487 - 2²⁴ = 324132271 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 (340909417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113339 + ... + 116307.

It is an arithmetic number, because the mean of its divisors is an integer number (42916500).

Almost surely, 2^340909487 is an apocalyptic number.

340909487 is a deficient number, since it is larger than the sum of its proper divisors (2422513).

340909487 is a wasteful number, since it uses less digits than its factorization.

340909487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 340909487 is about 18463.7343730893. The cubic root of 340909487 is about 698.5749833207.

The spelling of 340909487 in words is "three hundred forty million, nine hundred nine thousand, four hundred eighty-seven".