630512276 has 6 divisors (see below), whose sum is σ = 1103396490. Its totient is φ = 315256136.

The previous prime is 630512273. The next prime is 630512293. The reversal of 630512276 is 672215036.

It can be written as a sum of positive squares in only one way, i.e., 586608400 + 43903876 = 24220^2 + 6626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630512273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78814031 + ... + 78814038.

It is an arithmetic number, because the mean of its divisors is an integer number (183899415).

Almost surely, 2^630512276 is an apocalyptic number.

It is an amenable number.

630512276 is a deficient number, since it is larger than the sum of its proper divisors (472884214).

630512276 is a wasteful number, since it uses less digits than its factorization.

630512276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157628073 (or 157628071 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 630512276 is about 25110.0035045796. The cubic root of 630512276 is about 857.4941822599.

It can be divided in two parts, 6305 and 12276, that added together give a palindrome (18581).

The spelling of 630512276 in words is "six hundred thirty million, five hundred twelve thousand, two hundred seventy-six".