340303661 has 16 divisors (see below), whose sum is σ = 371563200. Its totient is φ = 310439808.

The previous prime is 340303631. The next prime is 340303669. The reversal of 340303661 is 166303043.

It is a cyclic number.

It is not a de Polignac number, because 340303661 - 2⁶ = 340303597 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 340303661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340303669) 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, 309665 + ... + 310761.

It is an arithmetic number, because the mean of its divisors is an integer number (23222700).

Almost surely, 2^340303661 is an apocalyptic number.

It is an amenable number.

340303661 is a deficient number, since it is larger than the sum of its proper divisors (31259539).

340303661 is a wasteful number, since it uses less digits than its factorization.

340303661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 340303661 is about 18447.3212418497. The cubic root of 340303661 is about 698.1609283213.

The spelling of 340303661 in words is "three hundred forty million, three hundred three thousand, six hundred sixty-one".