8042938740 has 60 divisors (see below), whose sum is σ = 25231001796. Its totient is φ = 2144783232.

The previous prime is 8042938727. The next prime is 8042938753. The reversal of 8042938740 is 478392408.

It is an interprime number because it is at equal distance from previous prime (8042938727) and next prime (8042938753).

It can be written as a sum of positive squares in 2 ways, for example, as 5085971856 + 2956966884 = 71316^2 + 54378^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2480769 + ... + 2484008.

Almost surely, 2^8042938740 is an apocalyptic number.

It is an amenable number.

8042938740 is an abundant number, since it is smaller than the sum of its proper divisors (17188063056).

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

8042938740 is a wasteful number, since it uses less digits than its factorization.

8042938740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964798 (or 4964787 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8042938740 is about 89682.4327279317. The cubic root of 8042938740 is about 2003.5718454957.

The spelling of 8042938740 in words is "eight billion, forty-two million, nine hundred thirty-eight thousand, seven hundred forty".