29129229 has 12 divisors (see below), whose sum is σ = 43102332. Its totient is φ = 18945600.

The previous prime is 29129227. The next prime is 29129273. The reversal of 29129229 is 92292192.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 26316900 = 1677^2 + 5130^2 .

It is not a de Polignac number, because 29129229 - 2¹ = 29129227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29129193 and 29129202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29129227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39102 + ... + 39839.

It is an arithmetic number, because the mean of its divisors is an integer number (3591861).

Almost surely, 2^29129229 is an apocalyptic number.

It is an amenable number.

29129229 is a deficient number, since it is larger than the sum of its proper divisors (13973103).

29129229 is a wasteful number, since it uses less digits than its factorization.

29129229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78988 (or 78985 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 29129229 is about 5397.1500812929. The cubic root of 29129229 is about 307.6873654863.

The spelling of 29129229 in words is "twenty-nine million, one hundred twenty-nine thousand, two hundred twenty-nine".