28534758 has 48 divisors (see below), whose sum is σ = 67371264. Its totient is φ = 8032080.

The previous prime is 28534747. The next prime is 28534769. The reversal of 28534758 is 85743582.

It is an interprime number because it is at equal distance from previous prime (28534747) and next prime (28534769).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20191 + ... + 21557.

It is an arithmetic number, because the mean of its divisors is an integer number (1403568).

Almost surely, 2^28534758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28534758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33685632).

28534758 is an abundant number, since it is smaller than the sum of its proper divisors (38836506).

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

28534758 is a wasteful number, since it uses less digits than its factorization.

28534758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1450 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 28534758 is about 5341.7935190346. The cubic root of 28534758 is about 305.5798625634.

It can be divided in two parts, 28534 and 758, that added together give a palindrome (29292).

The spelling of 28534758 in words is "twenty-eight million, five hundred thirty-four thousand, seven hundred fifty-eight".