630647572 has 48 divisors (see below), whose sum is σ = 1215844560. Its totient is φ = 284884992.

The previous prime is 630647569. The next prime is 630647597. The reversal of 630647572 is 275746036.

630647572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2944656 + 627702916 = 1716^2 + 25054^2 .

It is a congruent 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, 379768 + ... + 381424.

It is an arithmetic number, because the mean of its divisors is an integer number (25330095).

Almost surely, 2^630647572 is an apocalyptic number.

It is an amenable number.

630647572 is a deficient number, since it is larger than the sum of its proper divisors (585196988).

630647572 is a wasteful number, since it uses less digits than its factorization.

630647572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 630647572 is about 25112.6974258043. The cubic root of 630647572 is about 857.5555118803. Note that the first 4 decimals are identical.

The spelling of 630647572 in words is "six hundred thirty million, six hundred forty-seven thousand, five hundred seventy-two".