2071720 has 64 divisors (see below), whose sum is σ = 5472000. Its totient is φ = 705600.

The previous prime is 2071711. The next prime is 2071721. The reversal of 2071720 is 271702.

2071720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2071721) 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, 13645 + ... + 13795.

It is an arithmetic number, because the mean of its divisors is an integer number (85500).

2^2071720 is an apocalyptic number.

2071720 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 2071720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736000).

2071720 is an abundant number, since it is smaller than the sum of its proper divisors (3400280).

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

2071720 is a wasteful number, since it uses less digits than its factorization.

2071720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 2071720 is about 1439.3470741972. The cubic root of 2071720 is about 127.4804788773.

The spelling of 2071720 in words is "two million, seventy-one thousand, seven hundred twenty".