29151228 has 12 divisors (see below), whose sum is σ = 68019560. Its totient is φ = 9717072.

The previous prime is 29151211. The next prime is 29151257. The reversal of 29151228 is 82215192.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 29151195 and 29151204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214623 + ... + 1214646.

Almost surely, 2^29151228 is an apocalyptic number.

It is an amenable number.

29151228 is an abundant number, since it is smaller than the sum of its proper divisors (38868332).

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

29151228 is a wasteful number, since it uses less digits than its factorization.

29151228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429276 (or 2429274 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 29151228 is about 5399.1877166848. The cubic root of 29151228 is about 307.7648032961.

The spelling of 29151228 in words is "twenty-nine million, one hundred fifty-one thousand, two hundred twenty-eight".