2665401 has 8 divisors (see below), whose sum is σ = 3708480. Its totient is φ = 1699632.

The previous prime is 2665391. The next prime is 2665409. The reversal of 2665401 is 1045662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2665401 - 2⁹ = 2664889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2665409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19246 + ... + 19383.

It is an arithmetic number, because the mean of its divisors is an integer number (463560).

2^2665401 is an apocalyptic number.

It is an amenable number.

2665401 is a deficient number, since it is larger than the sum of its proper divisors (1043079).

2665401 is a wasteful number, since it uses less digits than its factorization.

2665401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38655.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2665401 is about 1632.6055861720. The cubic root of 2665401 is about 138.6503122919.

The spelling of 2665401 in words is "two million, six hundred sixty-five thousand, four hundred one".