2620728742 has 8 divisors (see below), whose sum is σ = 4014733536. Its totient is φ = 1282484232.

The previous prime is 2620728731. The next prime is 2620728757. The reversal of 2620728742 is 2478270262.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2620728695 and 2620728704.

It is a congruent number.

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, 13939953 + ... + 13940140.

It is an arithmetic number, because the mean of its divisors is an integer number (501841692).

Almost surely, 2^2620728742 is an apocalyptic number.

2620728742 is a deficient number, since it is larger than the sum of its proper divisors (1394004794).

2620728742 is a wasteful number, since it uses less digits than its factorization.

2620728742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27880142.

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

The square root of 2620728742 is about 51193.0536498850. The cubic root of 2620728742 is about 1378.7134866531.

The spelling of 2620728742 in words is "two billion, six hundred twenty million, seven hundred twenty-eight thousand, seven hundred forty-two".