3081418 has 4 divisors (see below), whose sum is σ = 4622130. Its totient is φ = 1540708.

The previous prime is 3081413. The next prime is 3081433. The reversal of 3081418 is 8141803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2380849 + 700569 = 1543^2 + 837^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3081392 and 3081401.

It is not an unprimeable number, because it can be changed into a prime (3081413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770353 + ... + 770356.

Almost surely, 2^3081418 is an apocalyptic number.

3081418 is a deficient number, since it is larger than the sum of its proper divisors (1540712).

3081418 is a wasteful number, since it uses less digits than its factorization.

3081418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540711.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 3081418 is about 1755.3968212344. The cubic root of 3081418 is about 145.5180517905.

The spelling of 3081418 in words is "three million, eighty-one thousand, four hundred eighteen".