28041433 has 8 divisors (see below), whose sum is σ = 32145152. Its totient is φ = 23962176.

The previous prime is 28041427. The next prime is 28041437. The reversal of 28041433 is 33414082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28041433 - 2⁵ = 28041401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28041398 and 28041407.

It is not an unprimeable number, because it can be changed into a prime (28041437) 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, 3585 + ... + 8302.

It is an arithmetic number, because the mean of its divisors is an integer number (4018144).

Almost surely, 2^28041433 is an apocalyptic number.

It is an amenable number.

28041433 is a deficient number, since it is larger than the sum of its proper divisors (4103719).

28041433 is a wasteful number, since it uses less digits than its factorization.

28041433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 28041433 is about 5295.4162253783. The cubic root of 28041433 is about 303.8086031204.

The spelling of 28041433 in words is "twenty-eight million, forty-one thousand, four hundred thirty-three".