28814156 has 18 divisors (see below), whose sum is σ = 58657788. Its totient is φ = 12348840.

The previous prime is 28814131. The next prime is 28814173. The reversal of 28814156 is 65141882.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73310 + ... + 73701.

It is an arithmetic number, because the mean of its divisors is an integer number (3258766).

Almost surely, 2^28814156 is an apocalyptic number.

It is an amenable number.

28814156 is an abundant number, since it is smaller than the sum of its proper divisors (29843632).

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

28814156 is a wasteful number, since it uses less digits than its factorization.

28814156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147029 (or 147020 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 28814156 is about 5367.8818913981. The cubic root of 28814156 is about 306.5739863809.

The spelling of 28814156 in words is "twenty-eight million, eight hundred fourteen thousand, one hundred fifty-six".