2056386 has 32 divisors (see below), whose sum is σ = 4322880. Its totient is φ = 651456.

The previous prime is 2056381. The next prime is 2056399. The reversal of 2056386 is 6836502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13020 + ... + 13176.

It is an arithmetic number, because the mean of its divisors is an integer number (135090).

2^2056386 is an apocalyptic number.

2056386 is an abundant number, since it is smaller than the sum of its proper divisors (2266494).

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

2056386 is a wasteful number, since it uses less digits than its factorization.

2056386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2056386 is about 1434.0104602129. The cubic root of 2056386 is about 127.1651807310.

Subtracting from 2056386 its sum of digits (30), we obtain a square (2056356 = 1434²).

It can be divided in two parts, 2056 and 386, that added together give a palindrome (2442).

The spelling of 2056386 in words is "two million, fifty-six thousand, three hundred eighty-six".