2724213636 has 27 divisors (see below), whose sum is σ = 6886998391. Its totient is φ = 907966824.

The previous prime is 2724213623. The next prime is 2724213641. The reversal of 2724213636 is 6363124272.

The square root of 2724213636 is 52194.

It is a perfect power (a square), and thus also a powerful number.

2724213636 is a `hidden beast` number, since 2 + 7 + 2 + 4 + 2 + 13 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2724213636.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 308815 + ... + 317513.

Almost surely, 2^2724213636 is an apocalyptic number.

2724213636 is the 52194-th square number.

It is an amenable number.

2724213636 is an abundant number, since it is smaller than the sum of its proper divisors (4162784755).

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

2724213636 is an frugal number, since it uses more digits than its factorization.

2724213636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17408 (or 8704 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The cubic root of 2724213636 is about 1396.6268513993.

Multiplying 2724213636 by its sum of digits (36), we get a square (98071690896 = 313164²).

2724213636 divided by its sum of digits (36) gives a square (75672601 = 8699²).

The spelling of 2724213636 in words is "two billion, seven hundred twenty-four million, two hundred thirteen thousand, six hundred thirty-six".