28032498 has 24 divisors (see below), whose sum is σ = 65409708. Its totient is φ = 8625312.

The previous prime is 28032491. The next prime is 28032523. The reversal of 28032498 is 89423082.

It can be written as a sum of positive squares in 2 ways, for example, as 27217089 + 815409 = 5217^2 + 903^2 .

It is not an unprimeable number, because it can be changed into a prime (28032491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59665 + ... + 60132.

Almost surely, 2^28032498 is an apocalyptic number.

28032498 is an abundant number, since it is smaller than the sum of its proper divisors (37377210).

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

28032498 is a wasteful number, since it uses less digits than its factorization.

28032498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119818 (or 119815 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 28032498 is about 5294.5725039893. The cubic root of 28032498 is about 303.7763316095.

The spelling of 28032498 in words is "twenty-eight million, thirty-two thousand, four hundred ninety-eight".