29944221 has 8 divisors (see below), whose sum is σ = 39953760. Its totient is φ = 19948752.

The previous prime is 29944219. The next prime is 29944231. The reversal of 29944221 is 12244992.

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

It is not a de Polignac number, because 29944221 - 2¹ = 29944219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29944231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3390 + ... + 8448.

It is an arithmetic number, because the mean of its divisors is an integer number (4994220).

Almost surely, 2^29944221 is an apocalyptic number.

It is an amenable number.

29944221 is a deficient number, since it is larger than the sum of its proper divisors (10009539).

29944221 is a wasteful number, since it uses less digits than its factorization.

29944221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035.

The product of its digits is 10368, while the sum is 33.

The square root of 29944221 is about 5472.1313032492. The cubic root of 29944221 is about 310.5305552065.

The spelling of 29944221 in words is "twenty-nine million, nine hundred forty-four thousand, two hundred twenty-one".