3081380 has 24 divisors (see below), whose sum is σ = 6623232. Its totient is φ = 1203552.

The previous prime is 3081373. The next prime is 3081389. The reversal of 3081380 is 831803.

3081380 = 86² + 87² + ... + 214².

It is not an unprimeable number, because it can be changed into a prime (3081389) 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, 932 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (275968).

Almost surely, 2^3081380 is an apocalyptic number.

It is an amenable number.

3081380 is an abundant number, since it is smaller than the sum of its proper divisors (3541852).

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

3081380 is a wasteful number, since it uses less digits than its factorization.

3081380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 3081380 is about 1755.3859974376. The cubic root of 3081380 is about 145.5174536126.

Adding to 3081380 its sum of digits (23), we get a triangular number (3081403 = T₂₄₈₂).

The spelling of 3081380 in words is "three million, eighty-one thousand, three hundred eighty".