29221330 has 8 divisors (see below), whose sum is σ = 52598412. Its totient is φ = 11688528.

The previous prime is 29221307. The next prime is 29221333. The reversal of 29221330 is 3312292.

It can be written as a sum of positive squares in 2 ways, for example, as 26204161 + 3017169 = 5119^2 + 1737^2 .

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

It is a super-2 number, since 2×29221330² = 1707772253937800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29221333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461057 + ... + 1461076.

Almost surely, 2^29221330 is an apocalyptic number.

29221330 is a deficient number, since it is larger than the sum of its proper divisors (23377082).

29221330 is a wasteful number, since it uses less digits than its factorization.

29221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922140.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 29221330 is about 5405.6757209437. The cubic root of 29221330 is about 308.0113070004.

The spelling of 29221330 in words is "twenty-nine million, two hundred twenty-one thousand, three hundred thirty".