28794292 has 24 divisors (see below), whose sum is σ = 51270912. Its totient is φ = 14148000.

The previous prime is 28794287. The next prime is 28794299. The reversal of 28794292 is 29249782.

It is a super-2 number, since 2×28794292² = 1658222503562528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794299) 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, 106117 + ... + 106387.

It is an arithmetic number, because the mean of its divisors is an integer number (2136288).

Almost surely, 2^28794292 is an apocalyptic number.

It is an amenable number.

28794292 is a deficient number, since it is larger than the sum of its proper divisors (22476620).

28794292 is a wasteful number, since it uses less digits than its factorization.

28794292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 28794292 is about 5366.0313081457. The cubic root of 28794292 is about 306.5035211831.

The spelling of 28794292 in words is "twenty-eight million, seven hundred ninety-four thousand, two hundred ninety-two".