7940009424 has 20 divisors (see below), whose sum is σ = 20511691136. Its totient is φ = 2646669792.

The previous prime is 7940009419. The next prime is 7940009501. The reversal of 7940009424 is 4249000497.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 82708384 + ... + 82708479.

Almost surely, 2^7940009424 is an apocalyptic number.

It is an amenable number.

7940009424 is an abundant number, since it is smaller than the sum of its proper divisors (12571681712).

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

7940009424 is a wasteful number, since it uses less digits than its factorization.

7940009424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165416874 (or 165416868 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 7940009424 is about 89106.7305202026. The cubic root of 7940009424 is about 1994.9882369392.

The spelling of 7940009424 in words is "seven billion, nine hundred forty million, nine thousand, four hundred twenty-four".