29228144 has 40 divisors (see below), whose sum is σ = 62674560. Its totient is φ = 13092800.

The previous prime is 29228141. The next prime is 29228179. The reversal of 29228144 is 44182292.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 29228144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29228141) 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, 11327 + ... + 13665.

It is an arithmetic number, because the mean of its divisors is an integer number (1566864).

Almost surely, 2^29228144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29228144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31337280).

29228144 is an abundant number, since it is smaller than the sum of its proper divisors (33446416).

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

29228144 is a wasteful number, since it uses less digits than its factorization.

29228144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2423 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 29228144 is about 5406.3059476874. The cubic root of 29228144 is about 308.0352464302.

The spelling of 29228144 in words is "twenty-nine million, two hundred twenty-eight thousand, one hundred forty-four".