29640229 has 2 divisors, whose sum is σ = 29640230. Its totient is φ = 29640228.

The previous prime is 29640227. The next prime is 29640257. The reversal of 29640229 is 92204692.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 3323329 = 5130^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 29640229 - 2¹ = 29640227 is a prime.

Together with 29640227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 29640194 and 29640203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29640223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14820114 + 14820115.

It is an arithmetic number, because the mean of its divisors is an integer number (14820115).

Almost surely, 2^29640229 is an apocalyptic number.

It is an amenable number.

29640229 is a deficient number, since it is larger than the sum of its proper divisors (1).

29640229 is an equidigital number, since it uses as much as digits as its factorization.

29640229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 29640229 is about 5444.2840667989. The cubic root of 29640229 is about 309.4761496145.

The spelling of 29640229 in words is "twenty-nine million, six hundred forty thousand, two hundred twenty-nine".