340550387 has 8 divisors (see below), whose sum is σ = 355440960. Its totient is φ = 325973440.

The previous prime is 340550359. The next prime is 340550389. The reversal of 340550387 is 783055043.

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 340550387 - 2⁶ = 340550323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340550389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76187 + ... + 80532.

It is an arithmetic number, because the mean of its divisors is an integer number (44430120).

Almost surely, 2^340550387 is an apocalyptic number.

340550387 is a deficient number, since it is larger than the sum of its proper divisors (14890573).

340550387 is a wasteful number, since it uses less digits than its factorization.

340550387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156813.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 340550387 is about 18454.0073425801. The cubic root of 340550387 is about 698.3296137833.

The spelling of 340550387 in words is "three hundred forty million, five hundred fifty thousand, three hundred eighty-seven".