2229793920 has 160 divisors (see below), whose sum is σ = 7963181820. Its totient is φ = 594597888.

The previous prime is 2229793919. The next prime is 2229793927. The reversal of 2229793920 is 293979222.

It can be written as a sum of positive squares in 2 ways, for example, as 2210504256 + 19289664 = 47016^2 + 4392^2 .

It is a tau number, because it is divible by the number of its divisors (160).

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

It is not an unprimeable number, because it can be changed into a prime (2229793927) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30334 + ... + 73346.

Almost surely, 2^2229793920 is an apocalyptic number.

2229793920 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 2229793920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3981590910).

2229793920 is an abundant number, since it is smaller than the sum of its proper divisors (5733387900).

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

2229793920 is an equidigital number, since it uses as much as digits as its factorization.

2229793920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43044 (or 43023 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2229793920 is about 47220.6937687281. The cubic root of 2229793920 is about 1306.4363099867.

The spelling of 2229793920 in words is "two billion, two hundred twenty-nine million, seven hundred ninety-three thousand, nine hundred twenty".