345266642 has 18 divisors (see below), whose sum is σ = 602776197. Its totient is φ = 147892584.

The previous prime is 345266633. The next prime is 345266671. The reversal of 345266642 is 246662543.

It can be written as a sum of positive squares in 2 ways, for example, as 339701761 + 5564881 = 18431^2 + 2359^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13139.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345266596 and 345266605.

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 in 8 ways as a sum of consecutive naturals, for example, 183008 + ... + 184884.

Almost surely, 2^345266642 is an apocalyptic number.

345266642 is a deficient number, since it is larger than the sum of its proper divisors (257509555).

345266642 is an frugal number, since it uses more digits than its factorization.

345266642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770 (or 1886 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 345266642 is about 18581.3519960201. The cubic root of 345266642 is about 701.5385492362.

The spelling of 345266642 in words is "three hundred forty-five million, two hundred sixty-six thousand, six hundred forty-two".