28866292 has 36 divisors (see below), whose sum is σ = 63289380. Its totient is φ = 11418624.

The previous prime is 28866251. The next prime is 28866307. The reversal of 28866292 is 29266882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 21864976 = 2646^2 + 4676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3117 + ... + 8212.

Almost surely, 2^28866292 is an apocalyptic number.

It is an amenable number.

28866292 is an abundant number, since it is smaller than the sum of its proper divisors (34423088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28866292 is a wasteful number, since it uses less digits than its factorization.

28866292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11360 (or 11351 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 28866292 is about 5372.7359883024. The cubic root of 28866292 is about 306.7587787781.

The spelling of 28866292 in words is "twenty-eight million, eight hundred sixty-six thousand, two hundred ninety-two".