3128949207 has 12 divisors (see below), whose sum is σ = 4520252880. Its totient is φ = 2085661728.

The previous prime is 3128949193. The next prime is 3128949209. The reversal of 3128949207 is 7029498213.

It is not a de Polignac number, because 3128949207 - 2⁶ = 3128949143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128949209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52219 + ... + 94787.

It is an arithmetic number, because the mean of its divisors is an integer number (376687740).

Almost surely, 2^3128949207 is an apocalyptic number.

3128949207 is a deficient number, since it is larger than the sum of its proper divisors (1391303673).

3128949207 is a wasteful number, since it uses less digits than its factorization.

3128949207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50742 (or 50739 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3128949207 is about 55937.0110660196. The cubic root of 3128949207 is about 1462.6244792579.

The spelling of 3128949207 in words is "three billion, one hundred twenty-eight million, nine hundred forty-nine thousand, two hundred seven".