28841532 has 72 divisors (see below), whose sum is σ = 72401616. Its totient is φ = 8928000.

The previous prime is 28841531. The next prime is 28841539. The reversal of 28841532 is 23514882.

28841532 is nontrivially palindromic in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 28841493 and 28841502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28841531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472782 + ... + 472842.

It is an arithmetic number, because the mean of its divisors is an integer number (1005578).

Almost surely, 2^28841532 is an apocalyptic number.

It is an amenable number.

28841532 is an abundant number, since it is smaller than the sum of its proper divisors (43560084).

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

28841532 is a wasteful number, since it uses less digits than its factorization.

28841532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 138 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 28841532 is about 5370.4312675985. The cubic root of 28841532 is about 306.6710464613.

The spelling of 28841532 in words is "twenty-eight million, eight hundred forty-one thousand, five hundred thirty-two".