630228641 has 24 divisors (see below), whose sum is σ = 781976160. Its totient is φ = 504669312.

The previous prime is 630228631. The next prime is 630228661. The reversal of 630228641 is 146822036.

It is not a de Polignac number, because 630228641 - 2¹⁸ = 629966497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630228598 and 630228607.

It is not an unprimeable number, because it can be changed into a prime (630228601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113066 + ... + 118508.

It is an arithmetic number, because the mean of its divisors is an integer number (32582340).

Almost surely, 2^630228641 is an apocalyptic number.

It is an amenable number.

630228641 is a deficient number, since it is larger than the sum of its proper divisors (151747519).

630228641 is a wasteful number, since it uses less digits than its factorization.

630228641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613 (or 5606 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 630228641 is about 25104.3550205935. The cubic root of 630228641 is about 857.3655821512.

It can be divided in two parts, 6302 and 28641, that added together give a palindrome (34943).

The spelling of 630228641 in words is "six hundred thirty million, two hundred twenty-eight thousand, six hundred forty-one".