2666448 has 30 divisors (see below), whose sum is σ = 7462754. Its totient is φ = 888768.

The previous prime is 2666429. The next prime is 2666453. The reversal of 2666448 is 8446662.

It is a happy number.

2666448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2039184 + 627264 = 1428^2 + 792^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 9115 + ... + 9402.

2^2666448 is an apocalyptic number.

It is an amenable number.

2666448 is an abundant number, since it is smaller than the sum of its proper divisors (4796306).

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

2666448 is a wasteful number, since it uses less digits than its factorization.

2666448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531 (or 18522 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 2666448 is about 1632.9262077632. The cubic root of 2666448 is about 138.6684643916.

The spelling of 2666448 in words is "two million, six hundred sixty-six thousand, four hundred forty-eight".