28074258 has 48 divisors (see below), whose sum is σ = 63063000. Its totient is φ = 9020160.

The previous prime is 28074223. The next prime is 28074271. The reversal of 28074258 is 85247082.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22724289 + 5349969 = 4767^2 + 2313^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80268 + ... + 80616.

Almost surely, 2^28074258 is an apocalyptic number.

28074258 is an abundant number, since it is smaller than the sum of its proper divisors (34988742).

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

28074258 is a wasteful number, since it uses less digits than its factorization.

28074258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28074258 is about 5298.5146975355. The cubic root of 28074258 is about 303.9271019228.

The spelling of 28074258 in words is "twenty-eight million, seventy-four thousand, two hundred fifty-eight".