29807144 has 8 divisors (see below), whose sum is σ = 55888410. Its totient is φ = 14903568.

The previous prime is 29807119. The next prime is 29807159. The reversal of 29807144 is 44170892.

It can be written as a sum of positive squares in only one way, i.e., 23406244 + 6400900 = 4838^2 + 2530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1862939 + ... + 1862954.

Almost surely, 2^29807144 is an apocalyptic number.

It is an amenable number.

29807144 is a deficient number, since it is larger than the sum of its proper divisors (26081266).

29807144 is a wasteful number, since it uses less digits than its factorization.

29807144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725899 (or 3725895 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 29807144 is about 5459.5919261425. The cubic root of 29807144 is about 310.0559871130.

The spelling of 29807144 in words is "twenty-nine million, eight hundred seven thousand, one hundred forty-four".