2491782 has 16 divisors (see below), whose sum is σ = 5052720. Its totient is φ = 819072.

The previous prime is 2491777. The next prime is 2491787. The reversal of 2491782 is 2871942.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2491777) and next prime (2491787).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491787) 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, 2407 + ... + 3282.

It is an arithmetic number, because the mean of its divisors is an integer number (315795).

2^2491782 is an apocalyptic number.

2491782 is an abundant number, since it is smaller than the sum of its proper divisors (2560938).

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

2491782 is a wasteful number, since it uses less digits than its factorization.

2491782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767.

The product of its digits is 8064, while the sum is 33.

The square root of 2491782 is about 1578.5379311249. The cubic root of 2491782 is about 135.5720036876.

It can be divided in two parts, 24 and 91782, that added together give a triangular number (91806 = T₄₂₈).

The spelling of 2491782 in words is "two million, four hundred ninety-one thousand, seven hundred eighty-two".