7994907420 has 24 divisors (see below), whose sum is σ = 22385740944. Its totient is φ = 2131975296.

The previous prime is 7994907307. The next prime is 7994907421. The reversal of 7994907420 is 247094997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7994907421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66624169 + ... + 66624288.

It is an arithmetic number, because the mean of its divisors is an integer number (932739206).

Almost surely, 2^7994907420 is an apocalyptic number.

It is an amenable number.

7994907420 is an abundant number, since it is smaller than the sum of its proper divisors (14390833524).

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

7994907420 is a wasteful number, since it uses less digits than its factorization.

7994907420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133248469 (or 133248467 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 7994907420 is about 89414.2461803487. The cubic root of 7994907420 is about 1999.5755282516.

The spelling of 7994907420 in words is "seven billion, nine hundred ninety-four million, nine hundred seven thousand, four hundred twenty".