9940990425 has 48 divisors (see below), whose sum is σ = 17165091840. Its totient is φ = 5066994240.

The previous prime is 9940990403. The next prime is 9940990439. The reversal of 9940990425 is 5240990499.

9940990425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9940990425 - 2⁹ = 9940989913 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 3239742 + ... + 3242808.

It is an arithmetic number, because the mean of its divisors is an integer number (357606080).

Almost surely, 2^9940990425 is an apocalyptic number.

It is an amenable number.

9940990425 is a deficient number, since it is larger than the sum of its proper divisors (7224101415).

9940990425 is a wasteful number, since it uses less digits than its factorization.

9940990425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982 (or 4977 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 9940990425 is about 99704.5155697574. The cubic root of 9940990425 is about 2150.1885845037.

The spelling of 9940990425 in words is "nine billion, nine hundred forty million, nine hundred ninety thousand, four hundred twenty-five".