345785439 has 32 divisors (see below), whose sum is σ = 489553920. Its totient is φ = 216770400.

The previous prime is 345785437. The next prime is 345785507. The reversal of 345785439 is 934587543.

It is not a de Polignac number, because 345785439 - 2¹ = 345785437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345785437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1044504 + ... + 1044834.

It is an arithmetic number, because the mean of its divisors is an integer number (15298560).

Almost surely, 2^345785439 is an apocalyptic number.

345785439 is a deficient number, since it is larger than the sum of its proper divisors (143768481).

345785439 is a wasteful number, since it uses less digits than its factorization.

345785439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 1814400, while the sum is 48.

The square root of 345785439 is about 18595.3069079271. The cubic root of 345785439 is about 701.8897502204.

The spelling of 345785439 in words is "three hundred forty-five million, seven hundred eighty-five thousand, four hundred thirty-nine".