29881245 has 16 divisors (see below), whose sum is σ = 48388032. Its totient is φ = 15744000.

The previous prime is 29881219. The next prime is 29881249. The reversal of 29881245 is 54218892.

It is not a de Polignac number, because 29881245 - 2⁵ = 29881213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29881249) 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 15 ways as a sum of consecutive naturals, for example, 10756 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (3024252).

Almost surely, 2^29881245 is an apocalyptic number.

It is an amenable number.

29881245 is a deficient number, since it is larger than the sum of its proper divisors (18506787).

29881245 is a wasteful number, since it uses less digits than its factorization.

29881245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24092.

The product of its digits is 46080, while the sum is 39.

The square root of 29881245 is about 5466.3740267201. The cubic root of 29881245 is about 310.3127090792.

The spelling of 29881245 in words is "twenty-nine million, eight hundred eighty-one thousand, two hundred forty-five".