2491718 has 8 divisors (see below), whose sum is σ = 3858240. Its totient is φ = 1205640.

The previous prime is 2491711. The next prime is 2491729. The reversal of 2491718 is 8171942.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20033 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (482280).

2^2491718 is an apocalyptic number.

2491718 is a deficient number, since it is larger than the sum of its proper divisors (1366522).

2491718 is a wasteful number, since it uses less digits than its factorization.

2491718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40222.

The product of its digits is 4032, while the sum is 32.

The square root of 2491718 is about 1578.5176590713. The cubic root of 2491718 is about 135.5708429811.

The spelling of 2491718 in words is "two million, four hundred ninety-one thousand, seven hundred eighteen".