2724742138 has 8 divisors (see below), whose sum is σ = 4088206080. Its totient is φ = 1362006780.

The previous prime is 2724742103. The next prime is 2724742147. The reversal of 2724742138 is 8312474272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2724742138² = 14848439437185622088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2724742138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172698 + ... + 187813.

It is an arithmetic number, because the mean of its divisors is an integer number (511025760).

Almost surely, 2^2724742138 is an apocalyptic number.

2724742138 is a deficient number, since it is larger than the sum of its proper divisors (1363463942).

2724742138 is a wasteful number, since it uses less digits than its factorization.

2724742138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364292.

The product of its digits is 150528, while the sum is 40.

The square root of 2724742138 is about 52199.0626161045. The cubic root of 2724742138 is about 1396.7171615408.

The spelling of 2724742138 in words is "two billion, seven hundred twenty-four million, seven hundred forty-two thousand, one hundred thirty-eight".