340354646 has 4 divisors (see below), whose sum is σ = 510531972. Its totient is φ = 170177322.

The previous prime is 340354627. The next prime is 340354649. The reversal of 340354646 is 646453043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646453043 = 17327 ⋅37309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340354649) 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 as a sum of consecutive naturals, namely, 85088660 + ... + 85088663.

It is an arithmetic number, because the mean of its divisors is an integer number (127632993).

Almost surely, 2^340354646 is an apocalyptic number.

340354646 is a deficient number, since it is larger than the sum of its proper divisors (170177326).

340354646 is a wasteful number, since it uses less digits than its factorization.

340354646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170177325.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 340354646 is about 18448.7030980500. The cubic root of 340354646 is about 698.1957932194.

The spelling of 340354646 in words is "three hundred forty million, three hundred fifty-four thousand, six hundred forty-six".