28938494 has 8 divisors (see below), whose sum is σ = 46746840. Its totient is φ = 13356216.

The previous prime is 28938451. The next prime is 28938517. The reversal of 28938494 is 49483982.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556484 + ... + 556535.

It is an arithmetic number, because the mean of its divisors is an integer number (5843355).

Almost surely, 2^28938494 is an apocalyptic number.

28938494 is a deficient number, since it is larger than the sum of its proper divisors (17808346).

28938494 is a wasteful number, since it uses less digits than its factorization.

28938494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113034.

The product of its digits is 497664, while the sum is 47.

The square root of 28938494 is about 5379.4510872393. The cubic root of 28938494 is about 307.0143266275.

It can be divided in two parts, 289 and 38494, that added together give a palindrome (38783).

The spelling of 28938494 in words is "twenty-eight million, nine hundred thirty-eight thousand, four hundred ninety-four".