2749782 has 48 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 765072.

The previous prime is 2749777. The next prime is 2749787. The reversal of 2749782 is 2879472.

It is an interprime number because it is at equal distance from previous prime (2749777) and next prime (2749787).

It is a super-2 number, since 2×2749782² = 15122602095048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2749782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13719 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^2749782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283200).

2749782 is an abundant number, since it is smaller than the sum of its proper divisors (3816618).

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

2749782 is a wasteful number, since it uses less digits than its factorization.

2749782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 258 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 2749782 is about 1658.2466644019. The cubic root of 2749782 is about 140.0982643466.

The spelling of 2749782 in words is "two million, seven hundred forty-nine thousand, seven hundred eighty-two".