28758576 has 160 divisors (see below), whose sum is σ = 95993856. Its totient is φ = 7200000.

The previous prime is 28758559. The next prime is 28758581. The reversal of 28758576 is 67585782.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 114451 + ... + 114701.

Almost surely, 2^28758576 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 28758576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47996928).

28758576 is an abundant number, since it is smaller than the sum of its proper divisors (67235280).

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

28758576 is a wasteful number, since it uses less digits than its factorization.

28758576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 305 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 28758576 is about 5362.7023038763. The cubic root of 28758576 is about 306.3767413213.

It can be divided in two parts, 287585 and 76, that added together give a triangular number (287661 = T₇₅₈).

The spelling of 28758576 in words is "twenty-eight million, seven hundred fifty-eight thousand, five hundred seventy-six".