2299021056 has 252 divisors, whose sum is σ = 7006112512. Its totient is φ = 752467968.

The previous prime is 2299021037. The next prime is 2299021057. The reversal of 2299021056 is 6501209922.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2299021056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2299021057) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 18102465 + ... + 18102591.

Almost surely, 2^2299021056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2299021056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3503056256).

2299021056 is an abundant number, since it is smaller than the sum of its proper divisors (4707091456).

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

2299021056 is an frugal number, since it uses more digits than its factorization.

2299021056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2299021056 is about 47948.1079501579. The cubic root of 2299021056 is about 1319.8188181075.

The spelling of 2299021056 in words is "two billion, two hundred ninety-nine million, twenty-one thousand, fifty-six".