345999772 has 12 divisors (see below), whose sum is σ = 605688160. Its totient is φ = 172946016.

The previous prime is 345999769. The next prime is 345999803. The reversal of 345999772 is 277999543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3304 + ... + 26512.

Almost surely, 2^345999772 is an apocalyptic number.

It is an amenable number.

345999772 is a deficient number, since it is larger than the sum of its proper divisors (259688388).

345999772 is a wasteful number, since it uses less digits than its factorization.

345999772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26940 (or 26938 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 55.

The square root of 345999772 is about 18601.0691090593. The cubic root of 345999772 is about 702.0347409641.

The spelling of 345999772 in words is "three hundred forty-five million, nine hundred ninety-nine thousand, seven hundred seventy-two".