68630944 has 12 divisors (see below), whose sum is σ = 135117234. Its totient is φ = 34315456.

The previous prime is 68630941. The next prime is 68630959. The reversal of 68630944 is 44903686.

It can be written as a sum of positive squares in only one way, i.e., 67043344 + 1587600 = 8188^2 + 1260^2 .

It is a super-2 number, since 2×68630944² = 9420412948662272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68630897 and 68630906.

It is not an unprimeable number, because it can be changed into a prime (68630941) 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 as a sum of consecutive naturals, namely, 1072327 + ... + 1072390.

Almost surely, 2^68630944 is an apocalyptic number.

It is an amenable number.

68630944 is a deficient number, since it is larger than the sum of its proper divisors (66486290).

68630944 is a wasteful number, since it uses less digits than its factorization.

68630944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144727 (or 2144719 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 68630944 is about 8284.3795181051. The cubic root of 68630944 is about 409.4240256652.

The spelling of 68630944 in words is "sixty-eight million, six hundred thirty thousand, nine hundred forty-four".