631491466 has 16 divisors (see below), whose sum is σ = 961813440. Its totient is φ = 310898560.

The previous prime is 631491463. The next prime is 631491481. The reversal of 631491466 is 664194136.

631491466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (631491463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129525 + ... + 134311.

It is an arithmetic number, because the mean of its divisors is an integer number (60113340).

Almost surely, 2^631491466 is an apocalyptic number.

631491466 is a deficient number, since it is larger than the sum of its proper divisors (330321974).

631491466 is a wasteful number, since it uses less digits than its factorization.

631491466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789.

The product of its digits is 93312, while the sum is 40.

The square root of 631491466 is about 25129.4939463571. The cubic root of 631491466 is about 857.9378508313.

The spelling of 631491466 in words is "six hundred thirty-one million, four hundred ninety-one thousand, four hundred sixty-six".