345189646 has 8 divisors (see below), whose sum is σ = 525077424. Its totient is φ = 170163840.

The previous prime is 345189643. The next prime is 345189659. The reversal of 345189646 is 646981543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 345189596 and 345189605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345189643) 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, 1215315 + ... + 1215598.

It is an arithmetic number, because the mean of its divisors is an integer number (65634678).

Almost surely, 2^345189646 is an apocalyptic number.

345189646 is a deficient number, since it is larger than the sum of its proper divisors (179887778).

345189646 is a wasteful number, since it uses less digits than its factorization.

345189646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430986.

The product of its digits is 622080, while the sum is 46.

The square root of 345189646 is about 18579.2800183430. The cubic root of 345189646 is about 701.4863966182.

The spelling of 345189646 in words is "three hundred forty-five million, one hundred eighty-nine thousand, six hundred forty-six".