28235544 has 32 divisors (see below), whose sum is σ = 72867840. Its totient is φ = 9108000.

The previous prime is 28235533. The next prime is 28235561. The reversal of 28235544 is 44553282.

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, 18232 + ... + 19719.

It is an arithmetic number, because the mean of its divisors is an integer number (2277120).

Almost surely, 2^28235544 is an apocalyptic number.

28235544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28235544 is an abundant number, since it is smaller than the sum of its proper divisors (44632296).

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

28235544 is a wasteful number, since it uses less digits than its factorization.

28235544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37991 (or 37987 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 28235544 is about 5313.7128262638. The cubic root of 28235544 is about 304.5080090969.

The spelling of 28235544 in words is "twenty-eight million, two hundred thirty-five thousand, five hundred forty-four".