340223517 has 16 divisors (see below), whose sum is σ = 504844480. Its totient is φ = 226451376.

The previous prime is 340223509. The next prime is 340223561. The reversal of 340223517 is 715322043.

It is not a de Polignac number, because 340223517 - 2³ = 340223509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340223017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7563 + ... + 27159.

It is an arithmetic number, because the mean of its divisors is an integer number (31552780).

Almost surely, 2^340223517 is an apocalyptic number.

It is an amenable number.

340223517 is a deficient number, since it is larger than the sum of its proper divisors (164620963).

340223517 is a wasteful number, since it uses less digits than its factorization.

340223517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20249 (or 20243 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 340223517 is about 18445.1488744331. The cubic root of 340223517 is about 698.1061166840.

The spelling of 340223517 in words is "three hundred forty million, two hundred twenty-three thousand, five hundred seventeen".