2007720 has 192 divisors, whose sum is σ = 7905600. Its totient is φ = 449280.

The previous prime is 2007703. The next prime is 2007721. The reversal of 2007720 is 277002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2007693 and 2007702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2007721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154434 + ... + 154446.

It is an arithmetic number, because the mean of its divisors is an integer number (41175).

2^2007720 is an apocalyptic number.

2007720 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 2007720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3952800).

2007720 is an abundant number, since it is smaller than the sum of its proper divisors (5897880).

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

2007720 is a wasteful number, since it uses less digits than its factorization.

2007720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 2007720 is about 1416.9403657176. The cubic root of 2007720 is about 126.1540066961.

The spelling of 2007720 in words is "two million, seven thousand, seven hundred twenty".