2721102428 has 24 divisors (see below), whose sum is σ = 5197576944. Its totient is φ = 1236211200.

The previous prime is 2721102421. The next prime is 2721102463. The reversal of 2721102428 is 8242011272.

It is a self number, because there is not a number n which added to its sum of digits gives 2721102428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721102421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73418 + ... + 104078.

It is an arithmetic number, because the mean of its divisors is an integer number (216565706).

Almost surely, 2^2721102428 is an apocalyptic number.

It is an amenable number.

2721102428 is a deficient number, since it is larger than the sum of its proper divisors (2476474516).

2721102428 is a wasteful number, since it uses less digits than its factorization.

2721102428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32693 (or 32691 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 2721102428 is about 52164.1872169020. The cubic root of 2721102428 is about 1396.0949729176.

The spelling of 2721102428 in words is "two billion, seven hundred twenty-one million, one hundred two thousand, four hundred twenty-eight".