29028220 has 48 divisors (see below), whose sum is σ = 66382848. Its totient is φ = 10598400.

The previous prime is 29028203. The next prime is 29028221. The reversal of 29028220 is 2282092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29028221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24645 + ... + 25795.

It is an arithmetic number, because the mean of its divisors is an integer number (1382976).

Almost surely, 2^29028220 is an apocalyptic number.

29028220 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 29028220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33191424).

29028220 is an abundant number, since it is smaller than the sum of its proper divisors (37354628).

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

29028220 is a wasteful number, since it uses less digits than its factorization.

29028220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 29028220 is about 5387.7843312442. The cubic root of 29028220 is about 307.3313063307.

The spelling of 29028220 in words is "twenty-nine million, twenty-eight thousand, two hundred twenty".