2259908640 has 384 divisors, whose sum is σ = 9086515200. Its totient is φ = 518814720.

The previous prime is 2259908639. The next prime is 2259908647. The reversal of 2259908640 is 468099522.

It is a super-2 number, since 2×2259908640² = 10214374122293299200, which contains 22 as substring.

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 (2259908647) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 901629 + ... + 904131.

It is an arithmetic number, because the mean of its divisors is an integer number (23662800).

Almost surely, 2^2259908640 is an apocalyptic number.

2259908640 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 2259908640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4543257600).

2259908640 is an abundant number, since it is smaller than the sum of its proper divisors (6826606560).

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

2259908640 is a wasteful number, since it uses less digits than its factorization.

2259908640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557 (or 2543 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2259908640 is about 47538.4964002859. The cubic root of 2259908640 is about 1312.2914346144.

The spelling of 2259908640 in words is "two billion, two hundred fifty-nine million, nine hundred eight thousand, six hundred forty".