28945041 has 8 divisors (see below), whose sum is σ = 39838464. Its totient is φ = 18674160.

The previous prime is 28945031. The next prime is 28945043. The reversal of 28945041 is 14054982.

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

It is not a de Polignac number, because 28945041 - 2¹⁷ = 28813969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28944993 and 28945011.

It is not an unprimeable number, because it can be changed into a prime (28945043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155526 + ... + 155711.

It is an arithmetic number, because the mean of its divisors is an integer number (4979808).

Almost surely, 2^28945041 is an apocalyptic number.

It is an amenable number.

28945041 is a deficient number, since it is larger than the sum of its proper divisors (10893423).

28945041 is a wasteful number, since it uses less digits than its factorization.

28945041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311271.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28945041 is about 5380.0595721609. The cubic root of 28945041 is about 307.0374776968.

The spelling of 28945041 in words is "twenty-eight million, nine hundred forty-five thousand, forty-one".