9800365440 has 64 divisors (see below), whose sum is σ = 31238670960. Its totient is φ = 2613430272.

The previous prime is 9800365397. The next prime is 9800365447. The reversal of 9800365440 is 445630089.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800365447) 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, 2550259 + ... + 2554098.

Almost surely, 2^9800365440 is an apocalyptic number.

It is an amenable number.

9800365440 is an abundant number, since it is smaller than the sum of its proper divisors (21438305520).

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

9800365440 is a wasteful number, since it uses less digits than its factorization.

9800365440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104379 (or 5104367 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 9800365440 is about 98996.7950996395. The cubic root of 9800365440 is about 2140.0015605427.

The spelling of 9800365440 in words is "nine billion, eight hundred million, three hundred sixty-five thousand, four hundred forty".