9021912140 has 24 divisors (see below), whose sum is σ = 19129961760. Its totient is φ = 3573727488.

The previous prime is 9021912061. The next prime is 9021912157. The reversal of 9021912140 is 412191209.

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, 2187725 + ... + 2191844.

It is an arithmetic number, because the mean of its divisors is an integer number (797081740).

Almost surely, 2^9021912140 is an apocalyptic number.

It is an amenable number.

9021912140 is an abundant number, since it is smaller than the sum of its proper divisors (10108049620).

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

9021912140 is a wasteful number, since it uses less digits than its factorization.

9021912140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379681 (or 4379679 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 9021912140 is about 94983.7467148985. The cubic root of 9021912140 is about 2081.7705692629.

The spelling of 9021912140 in words is "nine billion, twenty-one million, nine hundred twelve thousand, one hundred forty".