29668443 has 16 divisors (see below), whose sum is σ = 47589120. Its totient is φ = 16060896.

The previous prime is 29668403. The next prime is 29668493. The reversal of 29668443 is 34486692.

It is a happy number.

It is not a de Polignac number, because 29668443 - 2⁸ = 29668187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29668395 and 29668404.

It is not an unprimeable number, because it can be changed into a prime (29668403) 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 15 ways as a sum of consecutive naturals, for example, 36780 + ... + 37577.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^29668443 is an apocalyptic number.

29668443 is a deficient number, since it is larger than the sum of its proper divisors (17920677).

29668443 is a wasteful number, since it uses less digits than its factorization.

29668443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74386.

The product of its digits is 248832, while the sum is 42.

The square root of 29668443 is about 5446.8746084337. The cubic root of 29668443 is about 309.5743133982.

The spelling of 29668443 in words is "twenty-nine million, six hundred sixty-eight thousand, four hundred forty-three".