630351642 has 32 divisors (see below), whose sum is σ = 1280105280. Its totient is φ = 206893440.

The previous prime is 630351641. The next prime is 630351649. The reversal of 630351642 is 246153036.

It is not an unprimeable number, because it can be changed into a prime (630351641) 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, 512284 + ... + 513512.

It is an arithmetic number, because the mean of its divisors is an integer number (40003290).

Almost surely, 2^630351642 is an apocalyptic number.

630351642 is an abundant number, since it is smaller than the sum of its proper divisors (649753638).

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

630351642 is a wasteful number, since it uses less digits than its factorization.

630351642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 630351642 is about 25106.8046951419. The cubic root of 630351642 is about 857.4213555416.

The spelling of 630351642 in words is "six hundred thirty million, three hundred fifty-one thousand, six hundred forty-two".