630940515 has 16 divisors (see below), whose sum is σ = 1015344288. Its totient is φ = 334555136.

The previous prime is 630940493. The next prime is 630940517. The reversal of 630940515 is 515049036.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 630940515 - 2⁶ = 630940451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630940517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118974 + ... + 124163.

It is an arithmetic number, because the mean of its divisors is an integer number (63459018).

Almost surely, 2^630940515 is an apocalyptic number.

630940515 is a deficient number, since it is larger than the sum of its proper divisors (384403773).

630940515 is a wasteful number, since it uses less digits than its factorization.

630940515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243318.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 630940515 is about 25118.5293160249. The cubic root of 630940515 is about 857.6882727693.

The spelling of 630940515 in words is "six hundred thirty million, nine hundred forty thousand, five hundred fifteen".