28941276 has 96 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 7179264.

The previous prime is 28941239. The next prime is 28941281. The reversal of 28941276 is 67214982.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17785 + ... + 19343.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^28941276 is an apocalyptic number.

28941276 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28941276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

28941276 is an abundant number, since it is smaller than the sum of its proper divisors (59117604).

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

28941276 is a wasteful number, since it uses less digits than its factorization.

28941276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1601 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 28941276 is about 5379.7096575931. The cubic root of 28941276 is about 307.0241645789.

The spelling of 28941276 in words is "twenty-eight million, nine hundred forty-one thousand, two hundred seventy-six".