9038921220 has 240 divisors, whose sum is σ = 33069590400. Its totient is φ = 2065912128.

The previous prime is 9038921219. The next prime is 9038921237. The reversal of 9038921220 is 221298309.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 547527 + ... + 563793.

It is an arithmetic number, because the mean of its divisors is an integer number (137789960).

Almost surely, 2^9038921220 is an apocalyptic number.

9038921220 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 9038921220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16534795200).

9038921220 is an abundant number, since it is smaller than the sum of its proper divisors (24030669180).

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

9038921220 is a wasteful number, since it uses less digits than its factorization.

9038921220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16309 (or 16284 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 9038921220 is about 95073.2413458172. The cubic root of 9038921220 is about 2083.0780072943.

The spelling of 9038921220 in words is "nine billion, thirty-eight million, nine hundred twenty-one thousand, two hundred twenty".