1156220296 has 64 divisors (see below), whose sum is σ = 2708369280. Its totient is φ = 449556480.

The previous prime is 1156220267. The next prime is 1156220297. The reversal of 1156220296 is 6920226511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1156220297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353806 + ... + 357058.

It is an arithmetic number, because the mean of its divisors is an integer number (42318270).

Almost surely, 2^1156220296 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 1156220296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354184640).

1156220296 is an abundant number, since it is smaller than the sum of its proper divisors (1552148984).

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

1156220296 is a wasteful number, since it uses less digits than its factorization.

1156220296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1156220296 is about 34003.2394927307. The cubic root of 1156220296 is about 1049.5751254554.

The spelling of 1156220296 in words is "one billion, one hundred fifty-six million, two hundred twenty thousand, two hundred ninety-six".