29400109 has 8 divisors (see below), whose sum is σ = 29989400. Its totient is φ = 28814400.

The previous prime is 29400101. The next prime is 29400127. The reversal of 29400109 is 90100492.

It can be written as a sum of positive squares in 4 ways, for example, as 1044484 + 28355625 = 1022^2 + 5325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29400109 - 2³ = 29400101 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 (29400101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20599 + ... + 21979.

It is an arithmetic number, because the mean of its divisors is an integer number (3748675).

Almost surely, 2^29400109 is an apocalyptic number.

It is an amenable number.

29400109 is a deficient number, since it is larger than the sum of its proper divisors (589291).

29400109 is a wasteful number, since it uses less digits than its factorization.

29400109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 29400109 is about 5422.1867359950. The cubic root of 29400109 is about 308.6381782385.

The spelling of 29400109 in words is "twenty-nine million, four hundred thousand, one hundred nine".