2630312 has 8 divisors (see below), whose sum is σ = 4931850. Its totient is φ = 1315152.

The previous prime is 2630281. The next prime is 2630317. The reversal of 2630312 is 2130362.

It can be written as a sum of positive squares in only one way, i.e., 2579236 + 51076 = 1606^2 + 226^2 .

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

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2630317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164387 + ... + 164402.

2^2630312 is an apocalyptic number.

It is an amenable number.

2630312 is a deficient number, since it is larger than the sum of its proper divisors (2301538).

2630312 is a wasteful number, since it uses less digits than its factorization.

2630312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328795 (or 328791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2630312 is about 1621.8236648909. The cubic root of 2630312 is about 138.0391963154.

Adding to 2630312 its reverse (2130362), we get a palindrome (4760674).

The spelling of 2630312 in words is "two million, six hundred thirty thousand, three hundred twelve".