28240274 has 16 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 13440768.

The previous prime is 28240273. The next prime is 28240301. The reversal of 28240274 is 47204282.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28240273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8882 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (2776032).

Almost surely, 2^28240274 is an apocalyptic number.

28240274 is a deficient number, since it is larger than the sum of its proper divisors (16176238).

28240274 is a wasteful number, since it uses less digits than its factorization.

28240274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 28240274 is about 5314.1578824871. The cubic root of 28240274 is about 304.5250118088.

The spelling of 28240274 in words is "twenty-eight million, two hundred forty thousand, two hundred seventy-four".