28050278 has 16 divisors (see below), whose sum is σ = 42725760. Its totient is φ = 13810176.

The previous prime is 28050277. The next prime is 28050307. The reversal of 28050278 is 87205082.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48326 + ... + 48902.

It is an arithmetic number, because the mean of its divisors is an integer number (2670360).

Almost surely, 2^28050278 is an apocalyptic number.

28050278 is a deficient number, since it is larger than the sum of its proper divisors (14675482).

28050278 is a wasteful number, since it uses less digits than its factorization.

28050278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 28050278 is about 5296.2513157893. The cubic root of 28050278 is about 303.8405428173.

The spelling of 28050278 in words is "twenty-eight million, fifty thousand, two hundred seventy-eight".