2724401885 has 4 divisors (see below), whose sum is σ = 3269282268. Its totient is φ = 2179521504.

The previous prime is 2724401881. The next prime is 2724401893. The reversal of 2724401885 is 5881044272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 524135236 + 2200266649 = 22894^2 + 46907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2724401885 - 2² = 2724401881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2724401881) 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, 272440184 + ... + 272440193.

It is an arithmetic number, because the mean of its divisors is an integer number (817320567).

Almost surely, 2^2724401885 is an apocalyptic number.

It is an amenable number.

2724401885 is a deficient number, since it is larger than the sum of its proper divisors (544880383).

2724401885 is an equidigital number, since it uses as much as digits as its factorization.

2724401885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544880382.

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 2724401885 is about 52195.8033274707. The cubic root of 2724401885 is about 1396.6590206278.

The spelling of 2724401885 in words is "two billion, seven hundred twenty-four million, four hundred one thousand, eight hundred eighty-five".