2721001272 has 64 divisors (see below), whose sum is σ = 7504358400. Its totient is φ = 815274240.

The previous prime is 2721001271. The next prime is 2721001279.

2721001272 is nontrivially palindromic in base 10.

2721001272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721001271) 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, 34408 + ... + 81399.

It is an arithmetic number, because the mean of its divisors is an integer number (117255600).

Almost surely, 2^2721001272 is an apocalyptic number.

2721001272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2721001272 is an abundant number, since it is smaller than the sum of its proper divisors (4783357128).

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

2721001272 is a wasteful number, since it uses less digits than its factorization.

2721001272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115916 (or 115912 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 2721001272 is about 52163.2176154807. The cubic root of 2721001272 is about 1396.0776729277.

It can be divided in two parts, 272100 and 1272, that added together give a palindrome (273372).

The spelling of 2721001272 in words is "two billion, seven hundred twenty-one million, one thousand, two hundred seventy-two".