29089428 has 24 divisors (see below), whose sum is σ = 69320832. Its totient is φ = 9489984.

The previous prime is 29089367. The next prime is 29089429. The reversal of 29089428 is 82498092.

It is a self number, because there is not a number n which added to its sum of digits gives 29089428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29089429) 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, 25225 + ... + 26352.

It is an arithmetic number, because the mean of its divisors is an integer number (2888368).

Almost surely, 2^29089428 is an apocalyptic number.

It is an amenable number.

29089428 is an abundant number, since it is smaller than the sum of its proper divisors (40231404).

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

29089428 is a wasteful number, since it uses less digits than its factorization.

29089428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51631 (or 51629 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 29089428 is about 5393.4615971563. The cubic root of 29089428 is about 307.5471644226.

The spelling of 29089428 in words is "twenty-nine million, eighty-nine thousand, four hundred twenty-eight".