28938302 has 8 divisors (see below), whose sum is σ = 43436736. Its totient is φ = 14459392.

The previous prime is 28938263. The next prime is 28938307. The reversal of 28938302 is 20383982.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28938307) 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 3 ways as a sum of consecutive naturals, for example, 323 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (5429592).

Almost surely, 2^28938302 is an apocalyptic number.

28938302 is a deficient number, since it is larger than the sum of its proper divisors (14498434).

28938302 is a wasteful number, since it uses less digits than its factorization.

28938302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9762.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 28938302 is about 5379.4332415228. The cubic root of 28938302 is about 307.0136476371.

The spelling of 28938302 in words is "twenty-eight million, nine hundred thirty-eight thousand, three hundred two".