29945423 has 4 divisors (see below), whose sum is σ = 29956920. Its totient is φ = 29933928.

The previous prime is 29945417. The next prime is 29945431. The reversal of 29945423 is 32454992.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 29945423 - 2⁶ = 29945359 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 (29945413) 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, 236 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (7489230).

Almost surely, 2^29945423 is an apocalyptic number.

29945423 is a deficient number, since it is larger than the sum of its proper divisors (11497).

29945423 is an equidigital number, since it uses as much as digits as its factorization.

29945423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11496.

The product of its digits is 77760, while the sum is 38.

The square root of 29945423 is about 5472.2411313830. The cubic root of 29945423 is about 310.5347101845.

The spelling of 29945423 in words is "twenty-nine million, nine hundred forty-five thousand, four hundred twenty-three".