29820755228 has 12 divisors (see below), whose sum is σ = 56930532792. Its totient is φ = 13554888720.

The previous prime is 29820755221. The next prime is 29820755249. The reversal of 29820755228 is 82255702892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29820755221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338872175 + ... + 338872262.

It is an arithmetic number, because the mean of its divisors is an integer number (4744211066).

Almost surely, 2^29820755228 is an apocalyptic number.

It is an amenable number.

29820755228 is a deficient number, since it is larger than the sum of its proper divisors (27109777564).

29820755228 is a wasteful number, since it uses less digits than its factorization.

29820755228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677744452 (or 677744450 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 29820755228 in words is "twenty-nine billion, eight hundred twenty million, seven hundred fifty-five thousand, two hundred twenty-eight".