9918350140 has 24 divisors (see below), whose sum is σ = 20830883472. Its totient is φ = 3966892800.

The previous prime is 9918350119. The next prime is 9918350177. The reversal of 9918350140 is 410538199.

It is a junction number, because it is equal to n+sod(n) for n = 9918350093 and 9918350102.

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, 198715 + ... + 243565.

It is an arithmetic number, because the mean of its divisors is an integer number (867953478).

Almost surely, 2^9918350140 is an apocalyptic number.

It is an amenable number.

9918350140 is an abundant number, since it is smaller than the sum of its proper divisors (10912533332).

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

9918350140 is a wasteful number, since it uses less digits than its factorization.

9918350140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55917 (or 55915 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 9918350140 is about 99590.9139429898. The cubic root of 9918350140 is about 2148.5550153627. Note that the first 3 decimals are identical.

The spelling of 9918350140 in words is "nine billion, nine hundred eighteen million, three hundred fifty thousand, one hundred forty".