3309427872 has 36 divisors (see below), whose sum is σ = 9411186330. Its totient is φ = 1103142528.

The previous prime is 3309427867. The next prime is 3309427879. The reversal of 3309427872 is 2787249033.

3309427872 is a `hidden beast` number, since 3 + 309 + 4 + 278 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3286040976 + 23386896 = 57324^2 + 4836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3309427879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5745247 + ... + 5745822.

Almost surely, 2^3309427872 is an apocalyptic number.

3309427872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3309427872 is an abundant number, since it is smaller than the sum of its proper divisors (6101758458).

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

3309427872 is a wasteful number, since it uses less digits than its factorization.

3309427872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11491085 (or 11491074 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 3309427872 is about 57527.6270325832. The cubic root of 3309427872 is about 1490.2220097699. Note that the first 3 decimals are identical.

The spelling of 3309427872 in words is "three billion, three hundred nine million, four hundred twenty-seven thousand, eight hundred seventy-two".