29945005 has 4 divisors (see below), whose sum is σ = 35934012. Its totient is φ = 23956000.

The previous prime is 29944997. The next prime is 29945009. The reversal of 29945005 is 50054992.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5846724 + 24098281 = 2418^2 + 4909^2 .

It is not a de Polignac number, because 29945005 - 2³ = 29944997 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 (29945009) 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, 2994496 + ... + 2994505.

It is an arithmetic number, because the mean of its divisors is an integer number (8983503).

Almost surely, 2^29945005 is an apocalyptic number.

It is an amenable number.

29945005 is a deficient number, since it is larger than the sum of its proper divisors (5989007).

29945005 is an equidigital number, since it uses as much as digits as its factorization.

29945005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989006.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 29945005 is about 5472.2029384883. The cubic root of 29945005 is about 310.5332652880.

Adding to 29945005 its reverse (50054992), we get a palindrome (79999997).

The spelling of 29945005 in words is "twenty-nine million, nine hundred forty-five thousand, five".