29920222 has 8 divisors (see below), whose sum is σ = 45093672. Its totient is φ = 14889000.

The previous prime is 29920213. The next prime is 29920259. The reversal of 29920222 is 22202992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35029 + ... + 35872.

It is an arithmetic number, because the mean of its divisors is an integer number (5636709).

Almost surely, 2^29920222 is an apocalyptic number.

29920222 is a deficient number, since it is larger than the sum of its proper divisors (15173450).

29920222 is a wasteful number, since it uses less digits than its factorization.

29920222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71114.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 29920222 is about 5469.9380252431. The cubic root of 29920222 is about 310.4475740907.

The spelling of 29920222 in words is "twenty-nine million, nine hundred twenty thousand, two hundred twenty-two".