2642291 has 2 divisors, whose sum is σ = 2642292. Its totient is φ = 2642290.

The previous prime is 2642287. The next prime is 2642323. The reversal of 2642291 is 1922462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2642291 - 2² = 2642287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2642291.

It is not a weakly prime, because it can be changed into another prime (2642201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321145 + 1321146.

It is an arithmetic number, because the mean of its divisors is an integer number (1321146).

2^2642291 is an apocalyptic number.

2642291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642291 is an equidigital number, since it uses as much as digits as its factorization.

2642291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 2642291 is about 1625.5125345564. The cubic root of 2642291 is about 138.2484322826.

The spelling of 2642291 in words is "two million, six hundred forty-two thousand, two hundred ninety-one".