2742248642 has 64 divisors (see below), whose sum is σ = 4989600000. Its totient is φ = 1128508416.

The previous prime is 2742248611. The next prime is 2742248647. The reversal of 2742248642 is 2468422472.

It is a super-2 number, since 2×2742248642² = 15039855229101688328, 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 2742248642.

It is not an unprimeable number, because it can be changed into a prime (2742248647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6107234 + ... + 6107682.

It is an arithmetic number, because the mean of its divisors is an integer number (77962500).

Almost surely, 2^2742248642 is an apocalyptic number.

2742248642 is a deficient number, since it is larger than the sum of its proper divisors (2247351358).

2742248642 is a wasteful number, since it uses less digits than its factorization.

2742248642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 794 counting only the distinct ones).

The product of its digits is 344064, while the sum is 41.

The square root of 2742248642 is about 52366.4839568211. The cubic root of 2742248642 is about 1399.7020866099.

The spelling of 2742248642 in words is "two billion, seven hundred forty-two million, two hundred forty-eight thousand, six hundred forty-two".