2056720 has 40 divisors (see below), whose sum is σ = 4892544. Its totient is φ = 803712.

The previous prime is 2056697. The next prime is 2056727. The reversal of 2056720 is 276502.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2056691 and 2056700.

It is not an unprimeable number, because it can be changed into a prime (2056727) 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, 3487 + ... + 4033.

2^2056720 is an apocalyptic number.

2056720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2056720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446272).

2056720 is an abundant number, since it is smaller than the sum of its proper divisors (2835824).

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

2056720 is a wasteful number, since it uses less digits than its factorization.

2056720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2056720 is about 1434.1269120967. The cubic root of 2056720 is about 127.1720651180.

The spelling of 2056720 in words is "two million, fifty-six thousand, seven hundred twenty".