29900305 has 8 divisors (see below), whose sum is σ = 37117800. Its totient is φ = 23095296.

The previous prime is 29900303. The next prime is 29900323. The reversal of 29900305 is 50300992.

It can be written as a sum of positive squares in 4 ways, for example, as 8156736 + 21743569 = 2856^2 + 4663^2 .

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 29900305 - 2¹ = 29900303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29900303) 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, 102960 + ... + 103249.

It is an arithmetic number, because the mean of its divisors is an integer number (4639725).

Almost surely, 2^29900305 is an apocalyptic number.

It is an amenable number.

29900305 is a deficient number, since it is larger than the sum of its proper divisors (7217495).

29900305 is a wasteful number, since it uses less digits than its factorization.

29900305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206243.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 29900305 is about 5468.1171348098. The cubic root of 29900305 is about 310.3786735678.

The spelling of 29900305 in words is "twenty-nine million, nine hundred thousand, three hundred five".