28938074 has 8 divisors (see below), whose sum is σ = 47353248. Its totient is φ = 13153660.

The previous prime is 28938073. The next prime is 28938079. The reversal of 28938074 is 47083982.

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

It is not an unprimeable number, because it can be changed into a prime (28938073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657662 + ... + 657705.

It is an arithmetic number, because the mean of its divisors is an integer number (5919156).

Almost surely, 2^28938074 is an apocalyptic number.

28938074 is a deficient number, since it is larger than the sum of its proper divisors (18415174).

28938074 is a wasteful number, since it uses less digits than its factorization.

28938074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315380.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 28938074 is about 5379.4120496575. The cubic root of 28938074 is about 307.0128413321.

The spelling of 28938074 in words is "twenty-eight million, nine hundred thirty-eight thousand, seventy-four".