630484436 has 6 divisors (see below), whose sum is σ = 1103347770. Its totient is φ = 315242216.

The previous prime is 630484427. The next prime is 630484451. The reversal of 630484436 is 634484036.

630484436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 536200336 + 94284100 = 23156^2 + 9710^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 630484436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78810551 + ... + 78810558.

It is an arithmetic number, because the mean of its divisors is an integer number (183891295).

Almost surely, 2^630484436 is an apocalyptic number.

It is an amenable number.

630484436 is a deficient number, since it is larger than the sum of its proper divisors (472863334).

630484436 is a wasteful number, since it uses less digits than its factorization.

630484436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157621113 (or 157621111 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 630484436 is about 25109.4491377250. The cubic root of 630484436 is about 857.4815613111.

The spelling of 630484436 in words is "six hundred thirty million, four hundred eighty-four thousand, four hundred thirty-six".