2289437280 has 144 divisors (see below), whose sum is σ = 8413750800. Its totient is φ = 563549184.

The previous prime is 2289437279. The next prime is 2289437287. The reversal of 2289437280 is 827349822.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289437287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42430 + ... + 79869.

It is an arithmetic number, because the mean of its divisors is an integer number (58428825).

Almost surely, 2^2289437280 is an apocalyptic number.

2289437280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2289437280 is an abundant number, since it is smaller than the sum of its proper divisors (6124313520).

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

2289437280 is a wasteful number, since it uses less digits than its factorization.

2289437280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122333 (or 122322 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2289437280 is about 47848.0645376592. The cubic root of 2289437280 is about 1317.9823168954.

It can be divided in two parts, 2289 and 437280, that added together give a square (439569 = 663²).

The spelling of 2289437280 in words is "two billion, two hundred eighty-nine million, four hundred thirty-seven thousand, two hundred eighty".