29821144 has 16 divisors (see below), whose sum is σ = 55973520. Its totient is φ = 14894880.

The previous prime is 29821109. The next prime is 29821147. The reversal of 29821144 is 44112892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29821147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11749 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (3498345).

Almost surely, 2^29821144 is an apocalyptic number.

It is an amenable number.

29821144 is a deficient number, since it is larger than the sum of its proper divisors (26152376).

29821144 is a wasteful number, since it uses less digits than its factorization.

29821144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930 (or 3926 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 29821144 is about 5460.8739227343. The cubic root of 29821144 is about 310.1045225066.

The spelling of 29821144 in words is "twenty-nine million, eight hundred twenty-one thousand, one hundred forty-four".