7256741242 has 4 divisors (see below), whose sum is σ = 10885111866. Its totient is φ = 3628370620.

The previous prime is 7256741161. The next prime is 7256741333. The reversal of 7256741242 is 2421476527.

7256741242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2421476527 = 19 ⋅127446133.

It can be written as a sum of positive squares in only one way, i.e., 6140446321 + 1116294921 = 78361^2 + 33411^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7256741195 and 7256741204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814185309 + ... + 1814185312.

Almost surely, 2^7256741242 is an apocalyptic number.

7256741242 is a deficient number, since it is larger than the sum of its proper divisors (3628370624).

7256741242 is a wasteful number, since it uses less digits than its factorization.

7256741242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628370623.

The product of its digits is 188160, while the sum is 40.

The square root of 7256741242 is about 85186.5085679652. The cubic root of 7256741242 is about 1936.0380084190.

The spelling of 7256741242 in words is "seven billion, two hundred fifty-six million, seven hundred forty-one thousand, two hundred forty-two".