340117393 has 16 divisors (see below), whose sum is σ = 430377984. Its totient is φ = 261066960.

The previous prime is 340117367. The next prime is 340117409. The reversal of 340117393 is 393711043.

It is a de Polignac number, because none of the positive numbers 2^k-340117393 is a prime.

It is a super-2 number, since 2×340117393² = 231359682042232898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340117493) 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 15 ways as a sum of consecutive naturals, for example, 27805 + ... + 38122.

It is an arithmetic number, because the mean of its divisors is an integer number (26898624).

Almost surely, 2^340117393 is an apocalyptic number.

It is an amenable number.

340117393 is a deficient number, since it is larger than the sum of its proper divisors (90260591).

340117393 is a wasteful number, since it uses less digits than its factorization.

340117393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66012.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 340117393 is about 18442.2719045133. The cubic root of 340117393 is about 698.0335237030.

The spelling of 340117393 in words is "three hundred forty million, one hundred seventeen thousand, three hundred ninety-three".