2229772320 has 96 divisors (see below), whose sum is σ = 7804218240. Its totient is φ = 594604800.

The previous prime is 2229772319. The next prime is 2229772339. The reversal of 2229772320 is 232779222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 253756 + ... + 262395.

It is an arithmetic number, because the mean of its divisors is an integer number (81293940).

Almost surely, 2^2229772320 is an apocalyptic number.

2229772320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2229772320 is an abundant number, since it is smaller than the sum of its proper divisors (5574445920).

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

2229772320 is a wasteful number, since it uses less digits than its factorization.

2229772320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516175 (or 516161 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 2229772320 is about 47220.4650548891. The cubic root of 2229772320 is about 1306.4320914929.

The spelling of 2229772320 in words is "two billion, two hundred twenty-nine million, seven hundred seventy-two thousand, three hundred twenty".