3128723080 has 32 divisors (see below), whose sum is σ = 8045288640. Its totient is φ = 1072704960.

The previous prime is 3128723057. The next prime is 3128723089. The reversal of 3128723080 is 803278213.

It is a super-2 number, since 2×3128723080² = 19577816222649372800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3128723089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5586726 + ... + 5587285.

It is an arithmetic number, because the mean of its divisors is an integer number (251415270).

Almost surely, 2^3128723080 is an apocalyptic number.

It is an amenable number.

3128723080 is an abundant number, since it is smaller than the sum of its proper divisors (4916565560).

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

3128723080 is a wasteful number, since it uses less digits than its factorization.

3128723080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174029 (or 11174025 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3128723080 is about 55934.9897649048. The cubic root of 3128723080 is about 1462.5892441218.

The spelling of 3128723080 in words is "three billion, one hundred twenty-eight million, seven hundred twenty-three thousand, eighty".