4051782 has 56 divisors (see below), whose sum is σ = 10440336. Its totient is φ = 1154736.

The previous prime is 4051781. The next prime is 4051813. The reversal of 4051782 is 2871504.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051781) 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 27 ways as a sum of consecutive naturals, for example, 10008 + ... + 10404.

Almost surely, 2^4051782 is an apocalyptic number.

4051782 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4051782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5220168).

4051782 is an abundant number, since it is smaller than the sum of its proper divisors (6388554).

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

4051782 is an equidigital number, since it uses as much as digits as its factorization.

4051782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4051782 is about 2012.9038725185. The cubic root of 4051782 is about 159.4221604379.

It can be divided in two parts, 405 and 1782, that added together give a 7-th power (2187 = 3⁷).

The spelling of 4051782 in words is "four million, fifty-one thousand, seven hundred eighty-two".