2289312 has 36 divisors (see below), whose sum is σ = 6511050. Its totient is φ = 763008.

The previous prime is 2289281. The next prime is 2289349. The reversal of 2289312 is 2139822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 318096 = 1404^2 + 564^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3687 + ... + 4262.

2^2289312 is an apocalyptic number.

It is an amenable number.

2289312 is an abundant number, since it is smaller than the sum of its proper divisors (4221738).

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

2289312 is a wasteful number, since it uses less digits than its factorization.

2289312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7965 (or 7954 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2289312 is about 1513.0472563671. The cubic root of 2289312 is about 131.7958276077.

It can be divided in two parts, 2289 and 312, that added together give a square (2601 = 51²).

The spelling of 2289312 in words is "two million, two hundred eighty-nine thousand, three hundred twelve".