29968868 has 18 divisors (see below), whose sum is σ = 53767938. Its totient is φ = 14615680.

The previous prime is 29968867. The next prime is 29968877. The reversal of 29968868 is 86886992.

It can be written as a sum of positive squares in 3 ways, for example, as 135424 + 29833444 = 368^2 + 5462^2 .

It is not an unprimeable number, because it can be changed into a prime (29968867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4496 + ... + 8952.

Almost surely, 2^29968868 is an apocalyptic number.

It is an amenable number.

29968868 is a deficient number, since it is larger than the sum of its proper divisors (23799070).

29968868 is a wasteful number, since it uses less digits than its factorization.

29968868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543 (or 4500 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 29968868 is about 5474.3828875956. The cubic root of 29968868 is about 310.6157307696.

The spelling of 29968868 in words is "twenty-nine million, nine hundred sixty-eight thousand, eight hundred sixty-eight".