9940279800 has 96 divisors (see below), whose sum is σ = 33616241280. Its totient is φ = 2409763200.

The previous prime is 9940279787. The next prime is 9940279879. The reversal of 9940279800 is 89720499.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9940279800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 746452 + ... + 759651.

It is an arithmetic number, because the mean of its divisors is an integer number (350169180).

Almost surely, 2^9940279800 is an apocalyptic number.

It is an amenable number.

9940279800 is an abundant number, since it is smaller than the sum of its proper divisors (23675961480).

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

9940279800 is a wasteful number, since it uses less digits than its factorization.

9940279800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506133 (or 1506124 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 9940279800 is about 99700.9518510230. The cubic root of 9940279800 is about 2150.1373483556.

The spelling of 9940279800 in words is "nine billion, nine hundred forty million, two hundred seventy-nine thousand, eight hundred".