2120736 has 24 divisors (see below), whose sum is σ = 5567184. Its totient is φ = 706880.

The previous prime is 2120731. The next prime is 2120747. The reversal of 2120736 is 6370212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (2120731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10950 + ... + 11141.

It is an arithmetic number, because the mean of its divisors is an integer number (231966).

2^2120736 is an apocalyptic number.

It is an amenable number.

2120736 is an abundant number, since it is smaller than the sum of its proper divisors (3446448).

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

2120736 is a wasteful number, since it uses less digits than its factorization.

2120736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22104 (or 22096 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2120736 is about 1456.2746993614. The cubic root of 2120736 is about 128.4780302289.

Adding to 2120736 its reverse (6370212), we get a palindrome (8490948).

The spelling of 2120736 in words is "two million, one hundred twenty thousand, seven hundred thirty-six".