630744336 has 60 divisors (see below), whose sum is σ = 1869051132. Its totient is φ = 197879808.

The previous prime is 630744313. The next prime is 630744347. The reversal of 630744336 is 633447036.

It can be written as a sum of positive squares in 2 ways, for example, as 194769936 + 435974400 = 13956^2 + 20880^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 630744336.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 126381 + ... + 131276.

Almost surely, 2^630744336 is an apocalyptic number.

It is an amenable number.

630744336 is an abundant number, since it is smaller than the sum of its proper divisors (1238306796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630744336 is a wasteful number, since it uses less digits than its factorization.

630744336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257688 (or 257679 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The square root of 630744336 is about 25114.6239470154. The cubic root of 630744336 is about 857.5993695812.

The spelling of 630744336 in words is "six hundred thirty million, seven hundred forty-four thousand, three hundred thirty-six".