2056730 has 24 divisors (see below), whose sum is σ = 4012092. Its totient is φ = 758784.

The previous prime is 2056727. The next prime is 2056741. The reversal of 2056730 is 376502.

2056730 = T₅₅₆ + T₅₅₇ + ... + T₅₆₈.

It can be written as a sum of positive squares in 6 ways, for example, as 116281 + 1940449 = 341^2 + 1393^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2056696 and 2056705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1082 + ... + 2298.

2^2056730 is an apocalyptic number.

2056730 is a deficient number, since it is larger than the sum of its proper divisors (1955362).

2056730 is a wasteful number, since it uses less digits than its factorization.

2056730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 2056730 is about 1434.1303985342. The cubic root of 2056730 is about 127.1722712259.

The spelling of 2056730 in words is "two million, fifty-six thousand, seven hundred thirty".