2661318 has 24 divisors (see below), whose sum is σ = 6290856. Its totient is φ = 806400.

The previous prime is 2661317. The next prime is 2661331. The reversal of 2661318 is 8131662.

2661318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2661318² = 14165226994248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2661291 and 2661300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6523 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (262119).

2^2661318 is an apocalyptic number.

2661318 is an abundant number, since it is smaller than the sum of its proper divisors (3629538).

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

2661318 is a wasteful number, since it uses less digits than its factorization.

2661318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13460 (or 13457 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2661318 is about 1631.3546518155. The cubic root of 2661318 is about 138.5794788556.

The spelling of 2661318 in words is "two million, six hundred sixty-one thousand, three hundred eighteen".