7942040928 has 84 divisors (see below), whose sum is σ = 23443184268. Its totient is φ = 2647339200.

The previous prime is 7942040927. The next prime is 7942040929. The reversal of 7942040928 is 8290402497.

It is an interprime number because it is at equal distance from previous prime (7942040927) and next prime (7942040929).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942040927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 146898 + ... + 193553.

It is an arithmetic number, because the mean of its divisors is an integer number (279085527).

Almost surely, 2^7942040928 is an apocalyptic number.

It is an amenable number.

7942040928 is an abundant number, since it is smaller than the sum of its proper divisors (15501143340).

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

7942040928 is an equidigital number, since it uses as much as digits as its factorization.

7942040928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340479 (or 340456 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7942040928 is about 89118.1290647419. The cubic root of 7942040928 is about 1995.1583660817.

The spelling of 7942040928 in words is "seven billion, nine hundred forty-two million, forty thousand, nine hundred twenty-eight".