28339292 has 12 divisors (see below), whose sum is σ = 49670376. Its totient is φ = 14147760.

The previous prime is 28339273. The next prime is 28339307. The reversal of 28339292 is 29293382.

It is a super-2 number, since 2×28339292² = 1606230942122528, which contains 22 as substring.

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, 2363 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (4139198).

Almost surely, 2^28339292 is an apocalyptic number.

It is an amenable number.

28339292 is a deficient number, since it is larger than the sum of its proper divisors (21331084).

28339292 is a wasteful number, since it uses less digits than its factorization.

28339292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10948 (or 10946 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 28339292 is about 5323.4661640702. The cubic root of 28339292 is about 304.8805121847.

The spelling of 28339292 in words is "twenty-eight million, three hundred thirty-nine thousand, two hundred ninety-two".