2227165920 has 576 divisors, whose sum is σ = 9450919296. Its totient is φ = 465960960.

The previous prime is 2227165909. The next prime is 2227165939. The reversal of 2227165920 is 295617222.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7025602 + ... + 7025918.

It is an arithmetic number, because the mean of its divisors is an integer number (16407846).

Almost surely, 2^2227165920 is an apocalyptic number.

2227165920 is a gapful number since it is divisible by the number (20) 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 2227165920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4725459648).

2227165920 is an abundant number, since it is smaller than the sum of its proper divisors (7223753376).

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

2227165920 is a wasteful number, since it uses less digits than its factorization.

2227165920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2227165920 is about 47192.8587818115. The cubic root of 2227165920 is about 1305.9228597985.

The spelling of 2227165920 in words is "two billion, two hundred twenty-seven million, one hundred sixty-five thousand, nine hundred twenty".