2061756 has 18 divisors (see below), whose sum is σ = 5211752. Its totient is φ = 687240.

The previous prime is 2061733. The next prime is 2061757. The reversal of 2061756 is 6571602.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061757) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28600 + ... + 28671.

2^2061756 is an apocalyptic number.

It is an amenable number.

2061756 is an abundant number, since it is smaller than the sum of its proper divisors (3149996).

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

2061756 is a wasteful number, since it uses less digits than its factorization.

2061756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57281 (or 57276 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2061756 is about 1435.8816107187. The cubic root of 2061756 is about 127.2757766122.

It can be divided in two parts, 20 and 61756, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 2061756 in words is "two million, sixty-one thousand, seven hundred fifty-six".