630470019 has 4 divisors (see below), whose sum is σ = 840626696. Its totient is φ = 420313344.

The previous prime is 630470003. The next prime is 630470051. The reversal of 630470019 is 910074036.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 630470019 - 2⁴ = 630470003 is a prime.

It is a super-2 number, since 2×630470019² = 794984889715720722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630470059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105078334 + ... + 105078339.

It is an arithmetic number, because the mean of its divisors is an integer number (210156674).

Almost surely, 2^630470019 is an apocalyptic number.

630470019 is a deficient number, since it is larger than the sum of its proper divisors (210156677).

630470019 is a wasteful number, since it uses less digits than its factorization.

630470019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210156676.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 630470019 is about 25109.1620529240. The cubic root of 630470019 is about 857.4750253814.

The spelling of 630470019 in words is "six hundred thirty million, four hundred seventy thousand, nineteen".