29990868 has 24 divisors (see below), whose sum is σ = 71871072. Its totient is φ = 9726624.

The previous prime is 29990867. The next prime is 29990881. The reversal of 29990868 is 86809992.

It is a self number, because there is not a number n which added to its sum of digits gives 29990868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29990867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33330 + ... + 34217.

It is an arithmetic number, because the mean of its divisors is an integer number (2994628).

Almost surely, 2^29990868 is an apocalyptic number.

It is an amenable number.

29990868 is an abundant number, since it is smaller than the sum of its proper divisors (41880204).

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

29990868 is a wasteful number, since it uses less digits than its factorization.

29990868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67591 (or 67589 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 29990868 is about 5476.3918778700. The cubic root of 29990868 is about 310.6917193433.

The spelling of 29990868 in words is "twenty-nine million, nine hundred ninety thousand, eight hundred sixty-eight".