29470225 has 6 divisors (see below), whose sum is σ = 36543110. Its totient is φ = 23576160.

The previous prime is 29470213. The next prime is 29470247. The reversal of 29470225 is 52207492.

It can be written as a sum of positive squares in 3 ways, for example, as 3214849 + 26255376 = 1793^2 + 5124^2 .

It is not a de Polignac number, because 29470225 - 2⁷ = 29470097 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 589380 + ... + 589429.

Almost surely, 2^29470225 is an apocalyptic number.

29470225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29470225 is a deficient number, since it is larger than the sum of its proper divisors (7072885).

29470225 is a wasteful number, since it uses less digits than its factorization.

29470225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178819 (or 1178814 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 29470225 is about 5428.6485426854. The cubic root of 29470225 is about 308.8833393918.

The spelling of 29470225 in words is "twenty-nine million, four hundred seventy thousand, two hundred twenty-five".