29660220 has 72 divisors (see below), whose sum is σ = 92186640. Its totient is φ = 7714560.

The previous prime is 29660207. The next prime is 29660227. The reversal of 29660220 is 2206692.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29660227) 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 23 ways as a sum of consecutive naturals, for example, 5371 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (1280370).

Almost surely, 2^29660220 is an apocalyptic number.

29660220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29660220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46093320).

29660220 is an abundant number, since it is smaller than the sum of its proper divisors (62526420).

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

29660220 is a wasteful number, since it uses less digits than its factorization.

29660220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 29660220 is about 5446.1197195802. The cubic root of 29660220 is about 309.5457098884.

It can be divided in two parts, 296 and 60220, that added together give a square (60516 = 246²).

The spelling of 29660220 in words is "twenty-nine million, six hundred sixty thousand, two hundred twenty".