340694057 has 8 divisors (see below), whose sum is σ = 376371840. Its totient is φ = 305800560.

The previous prime is 340694041. The next prime is 340694083. The reversal of 340694057 is 750496043.

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 340694057 - 2⁴ = 340694041 is a prime.

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 340694057.

It is not an unprimeable number, because it can be changed into a prime (340694087) 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, 195158 + ... + 196895.

It is an arithmetic number, because the mean of its divisors is an integer number (47046480).

Almost surely, 2^340694057 is an apocalyptic number.

It is an amenable number.

340694057 is a deficient number, since it is larger than the sum of its proper divisors (35677783).

340694057 is a wasteful number, since it uses less digits than its factorization.

340694057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392143.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 340694057 is about 18457.8995825636. The cubic root of 340694057 is about 698.4278027875.

The spelling of 340694057 in words is "three hundred forty million, six hundred ninety-four thousand, fifty-seven".