630329955 has 8 divisors (see below), whose sum is σ = 1008527952. Its totient is φ = 336175968.

The previous prime is 630329929. The next prime is 630329969. The reversal of 630329955 is 559923036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 630329955 - 2⁸ = 630329699 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 21010984 + ... + 21011013.

It is an arithmetic number, because the mean of its divisors is an integer number (126065994).

Almost surely, 2^630329955 is an apocalyptic number.

630329955 is a deficient number, since it is larger than the sum of its proper divisors (378197997).

630329955 is a wasteful number, since it uses less digits than its factorization.

630329955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42022005.

The product of its (nonzero) digits is 218700, while the sum is 42.

The square root of 630329955 is about 25106.3727965630. The cubic root of 630329955 is about 857.4115223475.

The spelling of 630329955 in words is "six hundred thirty million, three hundred twenty-nine thousand, nine hundred fifty-five".