631236230 has 16 divisors (see below), whose sum is σ = 1147940640. Its totient is φ = 249891072.

The previous prime is 631236223. The next prime is 631236253. The reversal of 631236230 is 32632136.

It is a super-2 number, since 2×631236230² = 796918356129225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631236230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324410 + ... + 326349.

It is an arithmetic number, because the mean of its divisors is an integer number (71746290).

Almost surely, 2^631236230 is an apocalyptic number.

631236230 is a deficient number, since it is larger than the sum of its proper divisors (516704410).

631236230 is a wasteful number, since it uses less digits than its factorization.

631236230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650863.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 631236230 is about 25124.4150180656. The cubic root of 631236230 is about 857.8222482483.

Adding to 631236230 its reverse (32632136), we get a palindrome (663868366).

The spelling of 631236230 in words is "six hundred thirty-one million, two hundred thirty-six thousand, two hundred thirty".