631944734 has 16 divisors (see below), whose sum is σ = 1021040640. Its totient is φ = 292484280.

The previous prime is 631944679. The next prime is 631944739. The reversal of 631944734 is 437449136.

It is a junction number, because it is equal to n+sod(n) for n = 631944691 and 631944700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631944739) 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, 220154 + ... + 223005.

It is an arithmetic number, because the mean of its divisors is an integer number (63815040).

Almost surely, 2^631944734 is an apocalyptic number.

631944734 is a deficient number, since it is larger than the sum of its proper divisors (389095906).

631944734 is a wasteful number, since it uses less digits than its factorization.

631944734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443215.

The product of its digits is 217728, while the sum is 41.

The square root of 631944734 is about 25138.5109742005. The cubic root of 631944734 is about 858.1430701627.

The spelling of 631944734 in words is "six hundred thirty-one million, nine hundred forty-four thousand, seven hundred thirty-four".