29933220 has 48 divisors (see below), whose sum is σ = 86708160. Its totient is φ = 7706496.

The previous prime is 29933213. The next prime is 29933221. The reversal of 29933220 is 2233992.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (29933221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6862 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (1806420).

Almost surely, 2^29933220 is an apocalyptic number.

29933220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29933220 is an abundant number, since it is smaller than the sum of its proper divisors (56774940).

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

29933220 is a wasteful number, since it uses less digits than its factorization.

29933220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244 (or 17242 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 29933220 is about 5471.1260266969. The cubic root of 29933220 is about 310.4925226585.

The spelling of 29933220 in words is "twenty-nine million, nine hundred thirty-three thousand, two hundred twenty".