2041720 has 16 divisors (see below), whose sum is σ = 4593960. Its totient is φ = 816672.

The previous prime is 2041709. The next prime is 2041729. The reversal of 2041720 is 271402.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2041694 and 2041703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25482 + ... + 25561.

2^2041720 is an apocalyptic number.

2041720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2041720 is an abundant number, since it is smaller than the sum of its proper divisors (2552240).

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

2041720 is a wasteful number, since it uses less digits than its factorization.

2041720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51054 (or 51050 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2041720 is about 1428.8876792806. The cubic root of 2041720 is about 126.8621481478.

The spelling of 2041720 in words is "two million, forty-one thousand, seven hundred twenty".