29838981 has 8 divisors (see below), whose sum is σ = 41515200. Its totient is φ = 19027712.

The previous prime is 29838973. The next prime is 29838989. The reversal of 29838981 is 18983892.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29838973) and next prime (29838989).

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

It is a cyclic number.

It is not a de Polignac number, because 29838981 - 2³ = 29838973 is a prime.

It is a super-2 number, since 2×29838981² = 1780729574236722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29838981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29838989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216156 + ... + 216293.

It is an arithmetic number, because the mean of its divisors is an integer number (5189400).

Almost surely, 2^29838981 is an apocalyptic number.

It is an amenable number.

29838981 is a deficient number, since it is larger than the sum of its proper divisors (11676219).

29838981 is a wasteful number, since it uses less digits than its factorization.

29838981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432475.

The product of its digits is 248832, while the sum is 48.

The square root of 29838981 is about 5462.5068421010. The cubic root of 29838981 is about 310.1663380639.

The spelling of 29838981 in words is "twenty-nine million, eight hundred thirty-eight thousand, nine hundred eighty-one".