2722641 has 8 divisors (see below), whose sum is σ = 3639360. Its totient is φ = 1810512.

The previous prime is 2722639. The next prime is 2722661. The reversal of 2722641 is 1462272.

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

It is not a de Polignac number, because 2722641 - 2¹ = 2722639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2722661) 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, 636 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (454920).

2^2722641 is an apocalyptic number.

It is an amenable number.

2722641 is a deficient number, since it is larger than the sum of its proper divisors (916719).

2722641 is a wasteful number, since it uses less digits than its factorization.

2722641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its digits is 1344, while the sum is 24.

The square root of 2722641 is about 1650.0427267195. The cubic root of 2722641 is about 139.6358051085.

The spelling of 2722641 in words is "two million, seven hundred twenty-two thousand, six hundred forty-one".