28499324 has 24 divisors (see below), whose sum is σ = 58541280. Its totient is φ = 11883456.

The previous prime is 28499311. The next prime is 28499333. The reversal of 28499324 is 42399482.

It is a super-3 number, since 3×28499324³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12719 + ... + 14790.

It is an arithmetic number, because the mean of its divisors is an integer number (2439220).

Almost surely, 2^28499324 is an apocalyptic number.

It is an amenable number.

28499324 is an abundant number, since it is smaller than the sum of its proper divisors (30041956).

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

28499324 is a wasteful number, since it uses less digits than its factorization.

28499324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27557 (or 27555 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 28499324 is about 5338.4758124394. The cubic root of 28499324 is about 305.4533221301.

The spelling of 28499324 in words is "twenty-eight million, four hundred ninety-nine thousand, three hundred twenty-four".