9399632220 has 288 divisors, whose sum is σ = 31669747200. Its totient is φ = 2237760000.

The previous prime is 9399632201. The next prime is 9399632227. The reversal of 9399632220 is 222369939.

9399632220 is a `hidden beast` number, since 9 + 3 + 9 + 9 + 632 + 2 + 2 + 0 = 666.

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 (9399632227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44547915 + ... + 44548125.

It is an arithmetic number, because the mean of its divisors is an integer number (109964400).

Almost surely, 2^9399632220 is an apocalyptic number.

9399632220 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 9399632220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15834873600).

9399632220 is an abundant number, since it is smaller than the sum of its proper divisors (22270114980).

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

9399632220 is a wasteful number, since it uses less digits than its factorization.

9399632220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 9399632220 is about 96951.7004492443. The cubic root of 9399632220 is about 2110.4267699156.

The spelling of 9399632220 in words is "nine billion, three hundred ninety-nine million, six hundred thirty-two thousand, two hundred twenty".