2645741 has 4 divisors (see below), whose sum is σ = 3023712. Its totient is φ = 2267772.

The previous prime is 2645723. The next prime is 2645743. The reversal of 2645741 is 1475462.

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 a de Polignac number, because none of the positive numbers 2^k-2645741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188975 + ... + 188988.

It is an arithmetic number, because the mean of its divisors is an integer number (755928).

2^2645741 is an apocalyptic number.

It is an amenable number.

2645741 is a deficient number, since it is larger than the sum of its proper divisors (377971).

2645741 is an equidigital number, since it uses as much as digits as its factorization.

2645741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377970.

The product of its digits is 6720, while the sum is 29.

The square root of 2645741 is about 1626.5733921345. The cubic root of 2645741 is about 138.3085757536.

The spelling of 2645741 in words is "two million, six hundred forty-five thousand, seven hundred forty-one".