340957643 has 8 divisors (see below), whose sum is σ = 368928336. Its totient is φ = 313236000.

The previous prime is 340957633. The next prime is 340957649. The reversal of 340957643 is 346759043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340957643 is a prime.

It is a super-2 number, since 2×340957643² = 232504228640230898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340957643.

It is not an unprimeable number, because it can be changed into a prime (340957649) 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, 59408 + ... + 64893.

It is an arithmetic number, because the mean of its divisors is an integer number (46116042).

Almost surely, 2^340957643 is an apocalyptic number.

340957643 is a deficient number, since it is larger than the sum of its proper divisors (27970693).

340957643 is a wasteful number, since it uses less digits than its factorization.

340957643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124525.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 340957643 is about 18465.0383969273. The cubic root of 340957643 is about 698.6078747423.

The spelling of 340957643 in words is "three hundred forty million, nine hundred fifty-seven thousand, six hundred forty-three".