340740677 has 4 divisors (see below), whose sum is σ = 340866156. Its totient is φ = 340615200.

The previous prime is 340740611. The next prime is 340740679. The reversal of 340740677 is 776047043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 776047043 = 331 ⋅2344553.

It can be written as a sum of positive squares in 2 ways, for example, as 209844196 + 130896481 = 14486^2 + 11441^2 .

It is a cyclic number.

It is not a de Polignac number, because 340740677 - 2¹² = 340736581 is a prime.

It is a super-2 number, since 2×340740677² = 232208417924836658, 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 340740677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340740679) 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 3 ways as a sum of consecutive naturals, for example, 58574 + ... + 64127.

It is an arithmetic number, because the mean of its divisors is an integer number (85216539).

Almost surely, 2^340740677 is an apocalyptic number.

It is an amenable number.

340740677 is a deficient number, since it is larger than the sum of its proper divisors (125479).

340740677 is a wasteful number, since it uses less digits than its factorization.

340740677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125478.

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 340740677 is about 18459.1624132841. The cubic root of 340740677 is about 698.4596585619.

The spelling of 340740677 in words is "three hundred forty million, seven hundred forty thousand, six hundred seventy-seven".