28537248 has 24 divisors (see below), whose sum is σ = 74910528. Its totient is φ = 9512384.

The previous prime is 28537241. The next prime is 28537253. The reversal of 28537248 is 84273582.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (28537241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148536 + ... + 148727.

It is an arithmetic number, because the mean of its divisors is an integer number (3121272).

Almost surely, 2^28537248 is an apocalyptic number.

It is an amenable number.

28537248 is an abundant number, since it is smaller than the sum of its proper divisors (46373280).

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

28537248 is a wasteful number, since it uses less digits than its factorization.

28537248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297276 (or 297268 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 28537248 is about 5342.0265817384. The cubic root of 28537248 is about 305.5887508080.

It can be divided in two parts, 2853 and 7248, that added together give a palindrome (10101).

The spelling of 28537248 in words is "twenty-eight million, five hundred thirty-seven thousand, two hundred forty-eight".