2299556340 has 144 divisors (see below), whose sum is σ = 7566184080. Its totient is φ = 563036160.

The previous prime is 2299556333. The next prime is 2299556351. The reversal of 2299556340 is 436559922.

2299556340 is a `hidden beast` number, since 2 + 2 + 9 + 9 + 5 + 5 + 634 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 96943716 + 2202612624 = 9846^2 + 46932^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116296 + ... + 134624.

It is an arithmetic number, because the mean of its divisors is an integer number (52542945).

Almost surely, 2^2299556340 is an apocalyptic number.

2299556340 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 2299556340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3783092040).

2299556340 is an abundant number, since it is smaller than the sum of its proper divisors (5266627740).

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

2299556340 is a wasteful number, since it uses less digits than its factorization.

2299556340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18402 (or 18397 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 2299556340 is about 47953.6895348001. The cubic root of 2299556340 is about 1319.9212418574.

The spelling of 2299556340 in words is "two billion, two hundred ninety-nine million, five hundred fifty-six thousand, three hundred forty".