2113782 has 16 divisors (see below), whose sum is σ = 4612032. Its totient is φ = 640520.

The previous prime is 2113759. The next prime is 2113789. The reversal of 2113782 is 2873112.

It is a super-3 number, since 3×2113782³ = 28333605366008543304, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113789) 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, 15948 + ... + 16079.

It is an arithmetic number, because the mean of its divisors is an integer number (288252).

2^2113782 is an apocalyptic number.

2113782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2113782 is an abundant number, since it is smaller than the sum of its proper divisors (2498250).

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

2113782 is a wasteful number, since it uses less digits than its factorization.

2113782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32043.

The product of its digits is 672, while the sum is 24.

The square root of 2113782 is about 1453.8851398924. The cubic root of 2113782 is about 128.3374478170.

Adding to 2113782 its reverse (2873112), we get a palindrome (4986894).

It can be divided in two parts, 211 and 3782, that added together give a palindrome (3993).

The spelling of 2113782 in words is "two million, one hundred thirteen thousand, seven hundred eighty-two".