340561517 has 8 divisors (see below), whose sum is σ = 348528096. Its totient is φ = 332652112.

The previous prime is 340561513. The next prime is 340561519. The reversal of 340561517 is 715165043.

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 340561517 - 2² = 340561513 is a prime.

It is a super-2 number, since 2×340561517² = 231964293722682578, which contains 22 as substring.

It is a Duffinian number.

340561517 is a modest number, since divided by 61517 gives 3405 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340561513) 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, 2123 + ... + 26184.

It is an arithmetic number, because the mean of its divisors is an integer number (43566012).

Almost surely, 2^340561517 is an apocalyptic number.

It is an amenable number.

340561517 is a deficient number, since it is larger than the sum of its proper divisors (7966579).

340561517 is a wasteful number, since it uses less digits than its factorization.

340561517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28587.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 340561517 is about 18454.3089006335. The cubic root of 340561517 is about 698.3372213936.

The spelling of 340561517 in words is "three hundred forty million, five hundred sixty-one thousand, five hundred seventeen".