29491429 has 4 divisors (see below), whose sum is σ = 32172480. Its totient is φ = 26810380.

The previous prime is 29491417. The next prime is 29491433. The reversal of 29491429 is 92419492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29491429 - 2⁹ = 29490917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29491391 and 29491400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29491409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340509 + ... + 1340530.

It is an arithmetic number, because the mean of its divisors is an integer number (8043120).

Almost surely, 2^29491429 is an apocalyptic number.

It is an amenable number.

29491429 is a deficient number, since it is larger than the sum of its proper divisors (2681051).

29491429 is a wasteful number, since it uses less digits than its factorization.

29491429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681050.

The product of its digits is 46656, while the sum is 40.

The square root of 29491429 is about 5430.6011637755. The cubic root of 29491429 is about 308.9574027573.

The spelling of 29491429 in words is "twenty-nine million, four hundred ninety-one thousand, four hundred twenty-nine".