29955222 has 24 divisors (see below), whose sum is σ = 70803720. Its totient is φ = 9077280.

The previous prime is 29955221. The next prime is 29955239. The reversal of 29955222 is 22255992.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29955221) 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 11 ways as a sum of consecutive naturals, for example, 75447 + ... + 75842.

It is an arithmetic number, because the mean of its divisors is an integer number (2950155).

Almost surely, 2^29955222 is an apocalyptic number.

29955222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29955222 is an abundant number, since it is smaller than the sum of its proper divisors (40848498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29955222 is a wasteful number, since it uses less digits than its factorization.

29955222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151308 (or 151305 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 29955222 is about 5473.1363951577. The cubic root of 29955222 is about 310.5685784407.

The spelling of 29955222 in words is "twenty-nine million, nine hundred fifty-five thousand, two hundred twenty-two".