28242799 has 16 divisors (see below), whose sum is σ = 31298400. Its totient is φ = 25324416.

The previous prime is 28242791. The next prime is 28242859. The reversal of 28242799 is 99724282.

It is not a de Polignac number, because 28242799 - 2³ = 28242791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28242791) 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, 123217 + ... + 123445.

It is an arithmetic number, because the mean of its divisors is an integer number (1956150).

Almost surely, 2^28242799 is an apocalyptic number.

28242799 is a deficient number, since it is larger than the sum of its proper divisors (3055601).

28242799 is a wasteful number, since it uses less digits than its factorization.

28242799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474.

The product of its digits is 145152, while the sum is 43.

The square root of 28242799 is about 5314.3954500959. The cubic root of 28242799 is about 304.5340875322.

The spelling of 28242799 in words is "twenty-eight million, two hundred forty-two thousand, seven hundred ninety-nine".