630203642 has 8 divisors (see below), whose sum is σ = 947840916. Its totient is φ = 314256672.

The previous prime is 630203641. The next prime is 630203659. The reversal of 630203642 is 246302036.

It can be written as a sum of positive squares in 2 ways, for example, as 586656841 + 43546801 = 24221^2 + 6599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (630203641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421643 + ... + 423134.

Almost surely, 2^630203642 is an apocalyptic number.

630203642 is a deficient number, since it is larger than the sum of its proper divisors (317637274).

630203642 is a wasteful number, since it uses less digits than its factorization.

630203642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845152.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 630203642 is about 25103.8571139974. The cubic root of 630203642 is about 857.3542457546.

Adding to 630203642 its reverse (246302036), we get a palindrome (876505678).

The spelling of 630203642 in words is "six hundred thirty million, two hundred three thousand, six hundred forty-two".