2688232 has 8 divisors (see below), whose sum is σ = 5040450. Its totient is φ = 1344112.

The previous prime is 2688223. The next prime is 2688233. The reversal of 2688232 is 2328862.

It can be written as a sum of positive squares in only one way, i.e., 2390116 + 298116 = 1546^2 + 546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2688194 and 2688203.

It is not an unprimeable number, because it can be changed into a prime (2688233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168007 + ... + 168022.

2^2688232 is an apocalyptic number.

It is an amenable number.

2688232 is a deficient number, since it is larger than the sum of its proper divisors (2352218).

2688232 is a wasteful number, since it uses less digits than its factorization.

2688232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336035 (or 336031 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 2688232 is about 1639.5828737822. The cubic root of 2688232 is about 139.0450658698.

The spelling of 2688232 in words is "two million, six hundred eighty-eight thousand, two hundred thirty-two".