2101440724 has 12 divisors (see below), whose sum is σ = 3837413664. Its totient is φ = 1005036824.

The previous prime is 2101440709. The next prime is 2101440727. The reversal of 2101440724 is 4270441012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101440727) 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, 11420782 + ... + 11420965.

It is an arithmetic number, because the mean of its divisors is an integer number (319784472).

Almost surely, 2^2101440724 is an apocalyptic number.

It is an amenable number.

2101440724 is a deficient number, since it is larger than the sum of its proper divisors (1735972940).

2101440724 is a wasteful number, since it uses less digits than its factorization.

2101440724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22841774 (or 22841772 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2101440724 is about 45841.4738419262. The cubic root of 2101440724 is about 1280.8719490161.

Adding to 2101440724 its reverse (4270441012), we get a palindrome (6371881736).

The spelling of 2101440724 in words is "two billion, one hundred one million, four hundred forty thousand, seven hundred twenty-four".