29120144 has 10 divisors (see below), whose sum is σ = 56420310. Its totient is φ = 14560064.

The previous prime is 29120137. The next prime is 29120171. The reversal of 29120144 is 44102192.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 4000000 = 5012^2 + 2000^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909989 + ... + 910020.

It is an arithmetic number, because the mean of its divisors is an integer number (5642031).

Almost surely, 2^29120144 is an apocalyptic number.

It is an amenable number.

29120144 is a deficient number, since it is larger than the sum of its proper divisors (27300166).

29120144 is a wasteful number, since it uses less digits than its factorization.

29120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820017 (or 1820011 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 29120144 is about 5396.3083677640. The cubic root of 29120144 is about 307.6553743618.

The spelling of 29120144 in words is "twenty-nine million, one hundred twenty thousand, one hundred forty-four".