29968656 has 20 divisors (see below), whose sum is σ = 77419152. Its totient is φ = 9989536.

The previous prime is 29968649. The next prime is 29968669. The reversal of 29968656 is 65686992.

It is a junction number, because it is equal to n+sod(n) for n = 29968599 and 29968608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312126 + ... + 312221.

Almost surely, 2^29968656 is an apocalyptic number.

It is an amenable number.

29968656 is an abundant number, since it is smaller than the sum of its proper divisors (47450496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29968656 is a wasteful number, since it uses less digits than its factorization.

29968656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624358 (or 624352 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 29968656 is about 5474.3635246483. The cubic root of 29968656 is about 310.6149983352.

The spelling of 29968656 in words is "twenty-nine million, nine hundred sixty-eight thousand, six hundred fifty-six".