2491383 has 8 divisors (see below), whose sum is σ = 3466368. Its totient is φ = 1588664.

The previous prime is 2491381. The next prime is 2491387. The reversal of 2491383 is 3831942.

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

It is a cyclic number.

It is not a de Polignac number, because 2491383 - 2¹ = 2491381 is a prime.

2491383 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2491383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491381) 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, 17985 + ... + 18122.

It is an arithmetic number, because the mean of its divisors is an integer number (433296).

2^2491383 is an apocalyptic number.

2491383 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2491383 is a deficient number, since it is larger than the sum of its proper divisors (974985).

2491383 is a wasteful number, since it uses less digits than its factorization.

2491383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36133.

The product of its digits is 5184, while the sum is 30.

The square root of 2491383 is about 1578.4115432928. The cubic root of 2491383 is about 135.5647670838.

The spelling of 2491383 in words is "two million, four hundred ninety-one thousand, three hundred eighty-three".