2645401 has 4 divisors (see below), whose sum is σ = 2885904. Its totient is φ = 2404900.

The previous prime is 2645399. The next prime is 2645413. The reversal of 2645401 is 1045462.

2645401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2645401 - 2¹ = 2645399 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645431) 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 3 ways as a sum of consecutive naturals, for example, 120235 + ... + 120256.

It is an arithmetic number, because the mean of its divisors is an integer number (721476).

2^2645401 is an apocalyptic number.

It is an amenable number.

2645401 is a deficient number, since it is larger than the sum of its proper divisors (240503).

2645401 is a wasteful number, since it uses less digits than its factorization.

2645401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240502.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2645401 is about 1626.4688745869. The cubic root of 2645401 is about 138.3026508942.

It can be divided in two parts, 264 and 5401, that added together give a palindrome (5665).

The spelling of 2645401 in words is "two million, six hundred forty-five thousand, four hundred one".