29000028 has 24 divisors (see below), whose sum is σ = 71647632. Its totient is φ = 9097984.

The previous prime is 28999991. The next prime is 29000039. The reversal of 29000028 is 82000092.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 28999968 and 29000013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70875 + ... + 71282.

It is an arithmetic number, because the mean of its divisors is an integer number (2985318).

Almost surely, 2^29000028 is an apocalyptic number.

It is an amenable number.

29000028 is an abundant number, since it is smaller than the sum of its proper divisors (42647604).

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

29000028 is a wasteful number, since it uses less digits than its factorization.

29000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142181 (or 142179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 29000028 is about 5385.1674068686. The cubic root of 29000028 is about 307.2317814477.

The spelling of 29000028 in words is "twenty-nine million, twenty-eight", and thus it is an aban number and an uban number.