3309428943 has 6 divisors (see below), whose sum is σ = 4780286264. Its totient is φ = 2206285956.

The previous prime is 3309428891. The next prime is 3309428951. The reversal of 3309428943 is 3498249033.

It is not a de Polignac number, because 3309428943 - 2⁹ = 3309428431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309828943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183857155 + ... + 183857172.

Almost surely, 2^3309428943 is an apocalyptic number.

3309428943 is a deficient number, since it is larger than the sum of its proper divisors (1470857321).

3309428943 is a wasteful number, since it uses less digits than its factorization.

3309428943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367714333 (or 367714330 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3309428943 is about 57527.6363411535. The cubic root of 3309428943 is about 1490.2221705255. Note that the first 3 decimals are identical.

The spelling of 3309428943 in words is "three billion, three hundred nine million, four hundred twenty-eight thousand, nine hundred forty-three".