28612548 has 24 divisors (see below), whose sum is σ = 74180960. Its totient is φ = 9537480.

The previous prime is 28612543. The next prime is 28612561. The reversal of 28612548 is 84521682.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28612541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132358 + ... + 132573.

Almost surely, 2^28612548 is an apocalyptic number.

It is an amenable number.

28612548 is an abundant number, since it is smaller than the sum of its proper divisors (45568412).

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

28612548 is a wasteful number, since it uses less digits than its factorization.

28612548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264944 (or 264936 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 28612548 is about 5349.0698256800. The cubic root of 28612548 is about 305.8572960128.

The spelling of 28612548 in words is "twenty-eight million, six hundred twelve thousand, five hundred forty-eight".