3081260556 has 144 divisors (see below), whose sum is σ = 8915961600. Its totient is φ = 888585600.

The previous prime is 3081260551. The next prime is 3081260569. The reversal of 3081260556 is 6550621803.

3081260556 is a `hidden beast` number, since 3 + 0 + 81 + 26 + 0 + 556 = 666.

It is a super-2 number, since 2×3081260556² = 18988333227922858272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3081260556.

It is not an unprimeable number, because it can be changed into a prime (3081260551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 813475 + ... + 817253.

It is an arithmetic number, because the mean of its divisors is an integer number (61916400).

Almost surely, 2^3081260556 is an apocalyptic number.

3081260556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081260556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4457980800).

3081260556 is an abundant number, since it is smaller than the sum of its proper divisors (5834701044).

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

3081260556 is a wasteful number, since it uses less digits than its factorization.

3081260556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 3081260556 is about 55509.1033615208. The cubic root of 3081260556 is about 1455.1557334990.

The spelling of 3081260556 in words is "three billion, eighty-one million, two hundred sixty thousand, five hundred fifty-six".