2665481 has 16 divisors (see below), whose sum is σ = 3475584. Its totient is φ = 1983744.

The previous prime is 2665469. The next prime is 2665483. The reversal of 2665481 is 1845662.

It is a de Polignac number, because none of the positive numbers 2^k-2665481 is a prime.

It is a super-2 number, since 2×2665481² = 14209577922722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2665483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686 + ... + 2408.

It is an arithmetic number, because the mean of its divisors is an integer number (217224).

2^2665481 is an apocalyptic number.

It is an amenable number.

2665481 is a deficient number, since it is larger than the sum of its proper divisors (810103).

2665481 is a wasteful number, since it uses less digits than its factorization.

2665481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760.

The product of its digits is 11520, while the sum is 32.

The square root of 2665481 is about 1632.6300867006. The cubic root of 2665481 is about 138.6516994396.

The spelling of 2665481 in words is "two million, six hundred sixty-five thousand, four hundred eighty-one".