9069381720 has 384 divisors, whose sum is σ = 35632396800. Its totient is φ = 1954326528.

The previous prime is 9069381641. The next prime is 9069381721. The reversal of 9069381720 is 271839609.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9069381721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14698852 + ... + 14699468.

It is an arithmetic number, because the mean of its divisors is an integer number (92792700).

Almost surely, 2^9069381720 is an apocalyptic number.

9069381720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9069381720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17816198400).

9069381720 is an abundant number, since it is smaller than the sum of its proper divisors (26563015080).

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

9069381720 is a wasteful number, since it uses less digits than its factorization.

9069381720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9069381720 is about 95233.3015284044. The cubic root of 9069381720 is about 2085.4153236436.

The spelling of 9069381720 in words is "nine billion, sixty-nine million, three hundred eighty-one thousand, seven hundred twenty".