28514276 has 30 divisors (see below), whose sum is σ = 58232790. Its totient is φ = 12216288.

The previous prime is 28514263. The next prime is 28514303. The reversal of 28514276 is 67241582.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 13147876 = 3920^2 + 3626^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8120 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (1941093).

Almost surely, 2^28514276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28514276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29116395).

28514276 is an abundant number, since it is smaller than the sum of its proper divisors (29718514).

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

28514276 is an equidigital number, since it uses as much as digits as its factorization.

28514276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2978 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 28514276 is about 5339.8760285235. The cubic root of 28514276 is about 305.5067308776.

The spelling of 28514276 in words is "twenty-eight million, five hundred fourteen thousand, two hundred seventy-six".