29280128 has 16 divisors (see below), whose sum is σ = 58331760. Its totient is φ = 14640000.

The previous prime is 29280101. The next prime is 29280131. The reversal of 29280128 is 82108292.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 29280094 and 29280103.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 114248 + ... + 114503.

It is an arithmetic number, because the mean of its divisors is an integer number (3645735).

Almost surely, 2^29280128 is an apocalyptic number.

It is an amenable number.

29280128 is a deficient number, since it is larger than the sum of its proper divisors (29051632).

29280128 is an equidigital number, since it uses as much as digits as its factorization.

29280128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228765 (or 228753 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 29280128 is about 5411.1115309149. Note that the first 3 decimals coincide. The cubic root of 29280128 is about 308.2177579656.

The spelling of 29280128 in words is "twenty-nine million, two hundred eighty thousand, one hundred twenty-eight".