29472905 has 32 divisors (see below), whose sum is σ = 45308160. Its totient is φ = 17867520.

The previous prime is 29472893. The next prime is 29472923. The reversal of 29472905 is 50927492.

It is not a de Polignac number, because 29472905 - 2⁴ = 29472889 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

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 in 31 ways as a sum of consecutive naturals, for example, 13211 + ... + 15279.

It is an arithmetic number, because the mean of its divisors is an integer number (1415880).

Almost surely, 2^29472905 is an apocalyptic number.

It is an amenable number.

29472905 is a deficient number, since it is larger than the sum of its proper divisors (15835255).

29472905 is a wasteful number, since it uses less digits than its factorization.

29472905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 29472905 is about 5428.8953756727. The cubic root of 29472905 is about 308.8927023138.

The spelling of 29472905 in words is "twenty-nine million, four hundred seventy-two thousand, nine hundred five".