2491384 has 32 divisors (see below), whose sum is σ = 5654880. Its totient is φ = 1004544.

The previous prime is 2491381. The next prime is 2491387. The reversal of 2491384 is 4831942.

It is an interprime number because it is at equal distance from previous prime (2491381) and next prime (2491387).

It is a super-3 number, since 3×2491384³ = 46392018378921933312, which contains 333 as substring.

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, 357 + ... + 2260.

It is an arithmetic number, because the mean of its divisors is an integer number (176715).

2^2491384 is an apocalyptic number.

It is an amenable number.

2491384 is an abundant number, since it is smaller than the sum of its proper divisors (3163496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2491384 is a wasteful number, since it uses less digits than its factorization.

2491384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647 (or 2643 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 2491384 is about 1578.4118600669. The cubic root of 2491384 is about 135.5647852216.

The spelling of 2491384 in words is "two million, four hundred ninety-one thousand, three hundred eighty-four".