28151276 has 12 divisors (see below), whose sum is σ = 49858872. Its totient is φ = 13905888.

The previous prime is 28151273. The next prime is 28151281. The reversal of 28151276 is 67215182.

It is not an unprimeable number, because it can be changed into a prime (28151273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42065 + ... + 42728.

It is an arithmetic number, because the mean of its divisors is an integer number (4154906).

Almost surely, 2^28151276 is an apocalyptic number.

It is an amenable number.

28151276 is a deficient number, since it is larger than the sum of its proper divisors (21707596).

28151276 is a wasteful number, since it uses less digits than its factorization.

28151276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84880 (or 84878 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 28151276 is about 5305.7776055919. Note that the first 3 decimals coincide. The cubic root of 28151276 is about 304.2047760428.

The spelling of 28151276 in words is "twenty-eight million, one hundred fifty-one thousand, two hundred seventy-six".