631190634 has 16 divisors (see below), whose sum is σ = 1264488960. Its totient is φ = 210045600.

The previous prime is 631190629. The next prime is 631190657. The reversal of 631190634 is 436091136.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 631190595 and 631190604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83914 + ... + 91125.

It is an arithmetic number, because the mean of its divisors is an integer number (79030560).

Almost surely, 2^631190634 is an apocalyptic number.

631190634 is an abundant number, since it is smaller than the sum of its proper divisors (633298326).

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

631190634 is a wasteful number, since it uses less digits than its factorization.

631190634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175645.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 631190634 is about 25123.5075974674. The cubic root of 631190634 is about 857.8015934320.

The spelling of 631190634 in words is "six hundred thirty-one million, one hundred ninety thousand, six hundred thirty-four".