7938926442 has 12 divisors (see below), whose sum is σ = 17201007330. Its totient is φ = 2646308808.

The previous prime is 7938926417. The next prime is 7938926453. The reversal of 7938926442 is 2446298397.

It can be written as a sum of positive squares in only one way, i.e., 7846593561 + 92332881 = 88581^2 + 9609^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220525717 + ... + 220525752.

Almost surely, 2^7938926442 is an apocalyptic number.

7938926442 is an abundant number, since it is smaller than the sum of its proper divisors (9262080888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7938926442 is a wasteful number, since it uses less digits than its factorization.

7938926442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441051477 (or 441051474 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 7938926442 is about 89100.6534319474. The cubic root of 7938926442 is about 1994.8975303052.

The spelling of 7938926442 in words is "seven billion, nine hundred thirty-eight million, nine hundred twenty-six thousand, four hundred forty-two".