9798079440 has 40 divisors (see below), whose sum is σ = 30374047008. Its totient is φ = 2612821120.

The previous prime is 9798079411. The next prime is 9798079457. The reversal of 9798079440 is 449708979.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20412426 + ... + 20412905.

Almost surely, 2^9798079440 is an apocalyptic number.

It is an amenable number.

9798079440 is an abundant number, since it is smaller than the sum of its proper divisors (20575967568).

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

9798079440 is a wasteful number, since it uses less digits than its factorization.

9798079440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40825347 (or 40825341 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 9798079440 is about 98985.2485979603. The cubic root of 9798079440 is about 2139.8351577688.

The spelling of 9798079440 in words is "nine billion, seven hundred ninety-eight million, seventy-nine thousand, four hundred forty".