630143872 has 32 divisors (see below), whose sum is σ = 1257898680. Its totient is φ = 314436096.

The previous prime is 630143867. The next prime is 630143893. The reversal of 630143872 is 278341036.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62238 + ... + 71650.

Almost surely, 2^630143872 is an apocalyptic number.

It is an amenable number.

630143872 is a deficient number, since it is larger than the sum of its proper divisors (627754808).

630143872 is an equidigital number, since it uses as much as digits as its factorization.

630143872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950 (or 9938 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 630143872 is about 25102.6666312565. Note that the first 4 decimals coincide. The cubic root of 630143872 is about 857.3271403980.

The spelling of 630143872 in words is "six hundred thirty million, one hundred forty-three thousand, eight hundred seventy-two".