345728694 has 32 divisors (see below), whose sum is σ = 737012736. Its totient is φ = 107740800.

The previous prime is 345728689. The next prime is 345728717. The reversal of 345728694 is 496827543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4179 + ... + 26625.

It is an arithmetic number, because the mean of its divisors is an integer number (23031648).

Almost surely, 2^345728694 is an apocalyptic number.

345728694 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

345728694 is an abundant number, since it is smaller than the sum of its proper divisors (391284042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345728694 is a wasteful number, since it uses less digits than its factorization.

345728694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22620.

The product of its digits is 1451520, while the sum is 48.

The square root of 345728694 is about 18593.7810571169. The cubic root of 345728694 is about 701.8513536617.

The spelling of 345728694 in words is "three hundred forty-five million, seven hundred twenty-eight thousand, six hundred ninety-four".