630452234 has 4 divisors (see below), whose sum is σ = 945678354. Its totient is φ = 315226116.

The previous prime is 630452233. The next prime is 630452269. The reversal of 630452234 is 432254036.

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

It can be written as a sum of positive squares in only one way, i.e., 617671609 + 12780625 = 24853^2 + 3575^2 .

It is a junction number, because it is equal to n+sod(n) for n = 630452197 and 630452206.

It is not an unprimeable number, because it can be changed into a prime (630452231) 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 as a sum of consecutive naturals, namely, 157613057 + ... + 157613060.

Almost surely, 2^630452234 is an apocalyptic number.

630452234 is a deficient number, since it is larger than the sum of its proper divisors (315226120).

630452234 is a wasteful number, since it uses less digits than its factorization.

630452234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315226119.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 630452234 is about 25108.8078968317. The cubic root of 630452234 is about 857.4669624356.

The spelling of 630452234 in words is "six hundred thirty million, four hundred fifty-two thousand, two hundred thirty-four".