631949226 has 32 divisors (see below), whose sum is σ = 1288078848. Its totient is φ = 206646000.

The previous prime is 631949147. The next prime is 631949243. The reversal of 631949226 is 622949136.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97771 + ... + 104033.

It is an arithmetic number, because the mean of its divisors is an integer number (40252464).

Almost surely, 2^631949226 is an apocalyptic number.

631949226 is an abundant number, since it is smaller than the sum of its proper divisors (656129622).

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

631949226 is a wasteful number, since it uses less digits than its factorization.

631949226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6586.

The product of its digits is 139968, while the sum is 42.

The square root of 631949226 is about 25138.6003190313. The cubic root of 631949226 is about 858.1451034468.

The spelling of 631949226 in words is "six hundred thirty-one million, nine hundred forty-nine thousand, two hundred twenty-six".