28246512 has 40 divisors (see below), whose sum is σ = 83395456. Its totient is φ = 8070336.

The previous prime is 28246511. The next prime is 28246531. The reversal of 28246512 is 21564282.

It is a super-2 number, since 2×28246512² = 1595730880332288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28246512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28246511) 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, 41698 + ... + 42369.

Almost surely, 2^28246512 is an apocalyptic number.

It is an amenable number.

28246512 is an abundant number, since it is smaller than the sum of its proper divisors (55148944).

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

28246512 is a wasteful number, since it uses less digits than its factorization.

28246512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84085 (or 84079 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 28246512 is about 5314.7447727995. The cubic root of 28246512 is about 304.5474323558.

The spelling of 28246512 in words is "twenty-eight million, two hundred forty-six thousand, five hundred twelve".