28253876 has 48 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 11681280.

The previous prime is 28253857. The next prime is 28253887. The reversal of 28253876 is 67835282.

Its product of digits (161280) is a multiple of the sum of its prime factors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117116 + ... + 117356.

It is an arithmetic number, because the mean of its divisors is an integer number (1219680).

Almost surely, 2^28253876 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 28253876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29272320).

28253876 is an abundant number, since it is smaller than the sum of its proper divisors (30290764).

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

28253876 is a wasteful number, since it uses less digits than its factorization.

28253876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 28253876 is about 5315.4375172699. The cubic root of 28253876 is about 304.5738957109.

The spelling of 28253876 in words is "twenty-eight million, two hundred fifty-three thousand, eight hundred seventy-six".