3309139008 has 336 divisors, whose sum is σ = 11383182720. Its totient is φ = 933617664.

The previous prime is 3309138979. The next prime is 3309139019. The reversal of 3309139008 is 8009319033.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12301498 + ... + 12301766.

It is an arithmetic number, because the mean of its divisors is an integer number (33878520).

Almost surely, 2^3309139008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3309139008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5691591360).

3309139008 is an abundant number, since it is smaller than the sum of its proper divisors (8074043712).

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

3309139008 is a wasteful number, since it uses less digits than its factorization.

3309139008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 3309139008 is about 57525.1163232201. The cubic root of 3309139008 is about 1490.1786504106.

The spelling of 3309139008 in words is "three billion, three hundred nine million, one hundred thirty-nine thousand, eight".