2072730 has 48 divisors (see below), whose sum is σ = 5477472. Its totient is φ = 501600.

The previous prime is 2072701. The next prime is 2072731. The reversal of 2072730 is 372702.

It is a junction number, because it is equal to n+sod(n) for n = 2072697 and 2072706.

It is not an unprimeable number, because it can be changed into a prime (2072731) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 3915.

It is an arithmetic number, because the mean of its divisors is an integer number (114114).

2^2072730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2072730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738736).

2072730 is an abundant number, since it is smaller than the sum of its proper divisors (3404742).

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

2072730 is a wasteful number, since it uses less digits than its factorization.

2072730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 2072730 is about 1439.6978849745. The cubic root of 2072730 is about 127.5011918381.

The spelling of 2072730 in words is "two million, seventy-two thousand, seven hundred thirty".