3081380040 has 48 divisors (see below), whose sum is σ = 10014486300. Its totient is φ = 821701248.

The previous prime is 3081380039. The next prime is 3081380117. The reversal of 3081380040 is 400831803.

It can be written as a sum of positive squares in 2 ways, for example, as 3025220004 + 56160036 = 55002^2 + 7494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3081379986 and 3081380013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4279335 + ... + 4280054.

Almost surely, 2^3081380040 is an apocalyptic number.

3081380040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3081380040 is an abundant number, since it is smaller than the sum of its proper divisors (6933106260).

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

3081380040 is a wasteful number, since it uses less digits than its factorization.

3081380040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559406 (or 8559399 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 3081380040 is about 55510.1796069874. The cubic root of 3081380040 is about 1455.1745424223.

The spelling of 3081380040 in words is "three billion, eighty-one million, three hundred eighty thousand, forty".