630750044 has 6 divisors (see below), whose sum is σ = 1103812584. Its totient is φ = 315375020.

The previous prime is 630750037. The next prime is 630750047. The reversal of 630750044 is 440057036.

It is a junction number, because it is equal to n+sod(n) for n = 630749989 and 630750016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630750047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78843752 + ... + 78843759.

It is an arithmetic number, because the mean of its divisors is an integer number (183968764).

Almost surely, 2^630750044 is an apocalyptic number.

It is an amenable number.

630750044 is a deficient number, since it is larger than the sum of its proper divisors (473062540).

630750044 is a wasteful number, since it uses less digits than its factorization.

630750044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157687515 (or 157687513 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 630750044 is about 25114.7375857284. The cubic root of 630750044 is about 857.6019565578.

The spelling of 630750044 in words is "six hundred thirty million, seven hundred fifty thousand, forty-four".