29149729 has 16 divisors (see below), whose sum is σ = 34868736. Its totient is φ = 23846400.

The previous prime is 29149699. The next prime is 29149733. The reversal of 29149729 is 92794192.

It is a cyclic number.

It is not a de Polignac number, because 29149729 - 2¹⁷ = 29018657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29149739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12409 + ... + 14569.

It is an arithmetic number, because the mean of its divisors is an integer number (2179296).

Almost surely, 2^29149729 is an apocalyptic number.

It is an amenable number.

29149729 is a deficient number, since it is larger than the sum of its proper divisors (5719007).

29149729 is a wasteful number, since it uses less digits than its factorization.

29149729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its digits is 81648, while the sum is 43.

The square root of 29149729 is about 5399.0488977226. The cubic root of 29149729 is about 307.7595279626.

The spelling of 29149729 in words is "twenty-nine million, one hundred forty-nine thousand, seven hundred twenty-nine".