3309289945 has 16 divisors (see below), whose sum is σ = 4501707840. Its totient is φ = 2315162304.

The previous prime is 3309289889. The next prime is 3309289957. The reversal of 3309289945 is 5499829033.

It is not a de Polignac number, because 3309289945 - 2⁹ = 3309289433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3309289892 and 3309289901.

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, 1338559 + ... + 1341028.

It is an arithmetic number, because the mean of its divisors is an integer number (281356740).

Almost surely, 2^3309289945 is an apocalyptic number.

It is an amenable number.

3309289945 is a deficient number, since it is larger than the sum of its proper divisors (1192417895).

3309289945 is a wasteful number, since it uses less digits than its factorization.

3309289945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679624.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 3309289945 is about 57526.4282308575. The cubic root of 3309289945 is about 1490.2013068252.

The spelling of 3309289945 in words is "three billion, three hundred nine million, two hundred eighty-nine thousand, nine hundred forty-five".