8911140420 has 384 divisors, whose sum is σ = 31560302592. Its totient is φ = 1828915200.

The previous prime is 8911140331. The next prime is 8911140431. The reversal of 8911140420 is 240411198.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 49232730 + ... + 49232910.

It is an arithmetic number, because the mean of its divisors is an integer number (82188288).

Almost surely, 2^8911140420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8911140420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15780151296).

8911140420 is an abundant number, since it is smaller than the sum of its proper divisors (22649162172).

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

8911140420 is a wasteful number, since it uses less digits than its factorization.

8911140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8911140420 is about 94398.8369631745. The cubic root of 8911140420 is about 2073.2154139939.

It can be divided in two parts, 8911 and 140420, that added together give a triangular number (149331 = T₅₄₆).

The spelling of 8911140420 in words is "eight billion, nine hundred eleven million, one hundred forty thousand, four hundred twenty".