29118428 has 6 divisors (see below), whose sum is σ = 50957256. Its totient is φ = 14559212.

The previous prime is 29118421. The next prime is 29118457. The reversal of 29118428 is 82481192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29118421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3639800 + ... + 3639807.

It is an arithmetic number, because the mean of its divisors is an integer number (8492876).

Almost surely, 2^29118428 is an apocalyptic number.

It is an amenable number.

29118428 is a deficient number, since it is larger than the sum of its proper divisors (21838828).

29118428 is a wasteful number, since it uses less digits than its factorization.

29118428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279611 (or 7279609 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 29118428 is about 5396.1493678363. The cubic root of 29118428 is about 307.6493310424.

The spelling of 29118428 in words is "twenty-nine million, one hundred eighteen thousand, four hundred twenty-eight".