29042399 has 4 divisors (see below), whose sum is σ = 30305136. Its totient is φ = 27779664.

The previous prime is 29042389. The next prime is 29042413. The reversal of 29042399 is 99324092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29042399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29042339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631334 + ... + 631379.

It is an arithmetic number, because the mean of its divisors is an integer number (7576284).

Almost surely, 2^29042399 is an apocalyptic number.

29042399 is a deficient number, since it is larger than the sum of its proper divisors (1262737).

29042399 is a wasteful number, since it uses less digits than its factorization.

29042399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262736.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 29042399 is about 5389.1000176282. The cubic root of 29042399 is about 307.3813374301.

It can be divided in two parts, 2904 and 2399, that multiplied together give a palindrome (6966696).

The spelling of 29042399 in words is "twenty-nine million, forty-two thousand, three hundred ninety-nine".