29280393 has 8 divisors (see below), whose sum is σ = 43378400. Its totient is φ = 19520244.

The previous prime is 29280379. The next prime is 29280397. The reversal of 29280393 is 39308292.

It is not a de Polignac number, because 29280393 - 2⁹ = 29279881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29280397) 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 7 ways as a sum of consecutive naturals, for example, 542203 + ... + 542256.

It is an arithmetic number, because the mean of its divisors is an integer number (5422300).

Almost surely, 2^29280393 is an apocalyptic number.

It is an amenable number.

29280393 is a deficient number, since it is larger than the sum of its proper divisors (14098007).

29280393 is a wasteful number, since it uses less digits than its factorization.

29280393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084468 (or 1084462 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 29280393 is about 5411.1360175106. The cubic root of 29280393 is about 308.2186878051.

The spelling of 29280393 in words is "twenty-nine million, two hundred eighty thousand, three hundred ninety-three".