345358646 has 4 divisors (see below), whose sum is σ = 518037972. Its totient is φ = 172679322.

The previous prime is 345358633. The next prime is 345358661. The reversal of 345358646 is 646853543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646853543 = 7 ⋅92407649.

It is a junction number, because it is equal to n+sod(n) for n = 345358597 and 345358606.

It is a congruent number.

It is an unprimeable number.

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, 86339660 + ... + 86339663.

It is an arithmetic number, because the mean of its divisors is an integer number (129509493).

Almost surely, 2^345358646 is an apocalyptic number.

345358646 is a deficient number, since it is larger than the sum of its proper divisors (172679326).

345358646 is a wasteful number, since it uses less digits than its factorization.

345358646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172679325.

The product of its digits is 1036800, while the sum is 44.

The square root of 345358646 is about 18583.8275390190. The cubic root of 345358646 is about 701.6008572349.

The spelling of 345358646 in words is "three hundred forty-five million, three hundred fifty-eight thousand, six hundred forty-six".