2661448 has 16 divisors (see below), whose sum is σ = 5085180. Its totient is φ = 1305408.

The previous prime is 2661427. The next prime is 2661457. The reversal of 2661448 is 8441662.

It can be written as a sum of positive squares in 2 ways, for example, as 2196324 + 465124 = 1482^2 + 682^2 .

It is an Ulam number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2715 + ... + 3562.

2^2661448 is an apocalyptic number.

It is an amenable number.

2661448 is a deficient number, since it is larger than the sum of its proper divisors (2423732).

2661448 is a wasteful number, since it uses less digits than its factorization.

2661448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6332 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 2661448 is about 1631.3944955160. The cubic root of 2661448 is about 138.5817352612.

It can be divided in two parts, 26614 and 48, that added together give a palindrome (26662).

The spelling of 2661448 in words is "two million, six hundred sixty-one thousand, four hundred forty-eight".