29868641 has 8 divisors (see below), whose sum is σ = 33277824. Its totient is φ = 26575120.

The previous prime is 29868599. The next prime is 29868653. The reversal of 29868641 is 14686892.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-29868641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29868592 and 29868601.

It is not an unprimeable number, because it can be changed into a prime (29868341) 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, 28370 + ... + 29403.

It is an arithmetic number, because the mean of its divisors is an integer number (4159728).

Almost surely, 2^29868641 is an apocalyptic number.

It is an amenable number.

29868641 is a deficient number, since it is larger than the sum of its proper divisors (3409183).

29868641 is a wasteful number, since it uses less digits than its factorization.

29868641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57831.

The product of its digits is 165888, while the sum is 44.

The square root of 29868641 is about 5465.2210385308. The cubic root of 29868641 is about 310.2690726619.

The spelling of 29868641 in words is "twenty-nine million, eight hundred sixty-eight thousand, six hundred forty-one".