345677312 has 20 divisors (see below), whose sum is σ = 690680496. Its totient is φ = 172838400.

The previous prime is 345677309. The next prime is 345677329. The reversal of 345677312 is 213776543.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337064 + ... + 338087.

Almost surely, 2^345677312 is an apocalyptic number.

345677312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

345677312 is a deficient number, since it is larger than the sum of its proper divisors (345003184).

345677312 is an frugal number, since it uses more digits than its factorization.

345677312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675169 (or 675153 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 345677312 is about 18592.3993072438. The cubic root of 345677312 is about 701.8165823573.

The spelling of 345677312 in words is "three hundred forty-five million, six hundred seventy-seven thousand, three hundred twelve".