28332298 has 4 divisors (see below), whose sum is σ = 42498450. Its totient is φ = 14166148.

The previous prime is 28332289. The next prime is 28332329. The reversal of 28332298 is 89223382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89223382 = 2 ⋅44611691.

It can be written as a sum of positive squares in only one way, i.e., 28227969 + 104329 = 5313^2 + 323^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7083073 + ... + 7083076.

Almost surely, 2^28332298 is an apocalyptic number.

28332298 is a deficient number, since it is larger than the sum of its proper divisors (14166152).

28332298 is a wasteful number, since it uses less digits than its factorization.

28332298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14166151.

The product of its digits is 41472, while the sum is 37.

The square root of 28332298 is about 5322.8092207029. The cubic root of 28332298 is about 304.8554291099.

The spelling of 28332298 in words is "twenty-eight million, three hundred thirty-two thousand, two hundred ninety-eight".