29149220 has 24 divisors (see below), whose sum is σ = 64814904. Its totient is φ = 10973696.

The previous prime is 29149199. The next prime is 29149223. The reversal of 29149220 is 2294192.

It can be written as a sum of positive squares in 4 ways, for example, as 11035684 + 18113536 = 3322^2 + 4256^2 .

It is not an unprimeable number, because it can be changed into a prime (29149223) 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 7 ways as a sum of consecutive naturals, for example, 42527 + ... + 43206.

It is an arithmetic number, because the mean of its divisors is an integer number (2700621).

Almost surely, 2^29149220 is an apocalyptic number.

29149220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29149220 is an abundant number, since it is smaller than the sum of its proper divisors (35665684).

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

29149220 is a wasteful number, since it uses less digits than its factorization.

29149220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85759 (or 85757 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 29149220 is about 5399.0017595848. The cubic root of 29149220 is about 307.7577366308.

The spelling of 29149220 in words is "twenty-nine million, one hundred forty-nine thousand, two hundred twenty".