28841512 has 32 divisors (see below), whose sum is σ = 62020800. Its totient is φ = 12317184.

The previous prime is 28841489. The next prime is 28841513. The reversal of 28841512 is 21514882.

It is a super-2 number, since 2×28841512² = 1663665628892288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28841513) 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, 19039 + ... + 20497.

It is an arithmetic number, because the mean of its divisors is an integer number (1938150).

Almost surely, 2^28841512 is an apocalyptic number.

It is an amenable number.

28841512 is an abundant number, since it is smaller than the sum of its proper divisors (33179288).

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

28841512 is a wasteful number, since it uses less digits than its factorization.

28841512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825 (or 1821 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 28841512 is about 5370.4294055504. The cubic root of 28841512 is about 306.6709755748.

The spelling of 28841512 in words is "twenty-eight million, eight hundred forty-one thousand, five hundred twelve".