663044234 has 8 divisors (see below), whose sum is σ = 1053070308. Its totient is φ = 312020800.

The previous prime is 663044231. The next prime is 663044281. The reversal of 663044234 is 432440366.

It can be written as a sum of positive squares in 2 ways, for example, as 642369025 + 20675209 = 25345^2 + 4547^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 663044234.

It is not an unprimeable number, because it can be changed into a prime (663044231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9750617 + ... + 9750684.

Almost surely, 2^663044234 is an apocalyptic number.

663044234 is a deficient number, since it is larger than the sum of its proper divisors (390026074).

663044234 is a wasteful number, since it uses less digits than its factorization.

663044234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19501320.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 663044234 is about 25749.6453179456. The cubic root of 663044234 is about 871.9953470630.

The spelling of 663044234 in words is "six hundred sixty-three million, forty-four thousand, two hundred thirty-four".