630134278 has 32 divisors (see below), whose sum is σ = 1031097600. Its totient is φ = 287834976.

The previous prime is 630134273. The next prime is 630134293. The reversal of 630134278 is 872431036.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630134273) 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 15 ways as a sum of consecutive naturals, for example, 116175 + ... + 121477.

It is an arithmetic number, because the mean of its divisors is an integer number (32221800).

Almost surely, 2^630134278 is an apocalyptic number.

630134278 is a deficient number, since it is larger than the sum of its proper divisors (400963322).

630134278 is a wasteful number, since it uses less digits than its factorization.

630134278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436.

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

The square root of 630134278 is about 25102.4755352933. The cubic root of 630134278 is about 857.3227894136.

The spelling of 630134278 in words is "six hundred thirty million, one hundred thirty-four thousand, two hundred seventy-eight".