630242631 has 6 divisors (see below), whose sum is σ = 910350480. Its totient is φ = 420161748.

The previous prime is 630242603. The next prime is 630242681. The reversal of 630242631 is 136242036.

630242631 is a `hidden beast` number, since 6 + 3 + 0 + 24 + 2 + 631 = 666.

630242631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630242631 - 2¹³ = 630234439 is a prime.

It is a super-2 number, since 2×630242631² = 794411547859604322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630242595 and 630242604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630242681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35013471 + ... + 35013488.

It is an arithmetic number, because the mean of its divisors is an integer number (151725080).

Almost surely, 2^630242631 is an apocalyptic number.

630242631 is a deficient number, since it is larger than the sum of its proper divisors (280107849).

630242631 is a wasteful number, since it uses less digits than its factorization.

630242631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70026965 (or 70026962 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 630242631 is about 25104.6336559608. The cubic root of 630242631 is about 857.3719261218.

Adding to 630242631 its reverse (136242036), we get a palindrome (766484667).

The spelling of 630242631 in words is "six hundred thirty million, two hundred forty-two thousand, six hundred thirty-one".