3130265840 has 80 divisors (see below), whose sum is σ = 8020090848. Its totient is φ = 1128895488.

The previous prime is 3130265837. The next prime is 3130265851. The reversal of 3130265840 is 485620313.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3130265797 and 3130265806.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9722 + ... + 79718.

Almost surely, 2^3130265840 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 3130265840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4010045424).

3130265840 is an abundant number, since it is smaller than the sum of its proper divisors (4889825008).

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

3130265840 is a wasteful number, since it uses less digits than its factorization.

3130265840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70066 (or 70060 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3130265840 is about 55948.7787176807. The cubic root of 3130265840 is about 1462.8296034578.

The spelling of 3130265840 in words is "three billion, one hundred thirty million, two hundred sixty-five thousand, eight hundred forty".