28029256 has 32 divisors (see below), whose sum is σ = 56246400. Its totient is φ = 13055040.

The previous prime is 28029251. The next prime is 28029257. The reversal of 28029256 is 65292082.

It is not an unprimeable number, because it can be changed into a prime (28029251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7761 + ... + 10783.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^28029256 is an apocalyptic number.

It is an amenable number.

28029256 is an abundant number, since it is smaller than the sum of its proper divisors (28217144).

28029256 is a wasteful number, since it uses less digits than its factorization.

28029256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 28029256 is about 5294.2663325526. The cubic root of 28029256 is about 303.7646204301.

The spelling of 28029256 in words is "twenty-eight million, twenty-nine thousand, two hundred fifty-six".