28240467 has 16 divisors (see below), whose sum is σ = 39191040. Its totient is φ = 18073952.

The previous prime is 28240453. The next prime is 28240469. The reversal of 28240467 is 76404282.

It is a cyclic number.

It is not a de Polignac number, because 28240467 - 2⁸ = 28240211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28240469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5584 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 2^28240467 is an apocalyptic number.

28240467 is a deficient number, since it is larger than the sum of its proper divisors (10950573).

28240467 is a wasteful number, since it uses less digits than its factorization.

28240467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 28240467 is about 5314.1760414951. The cubic root of 28240467 is about 304.5257055367.

The spelling of 28240467 in words is "twenty-eight million, two hundred forty thousand, four hundred sixty-seven".