28091262 has 16 divisors (see below), whose sum is σ = 56699280. Its totient is φ = 9277632.

The previous prime is 28091249. The next prime is 28091279. The reversal of 28091262 is 26219082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20823 + ... + 22130.

It is an arithmetic number, because the mean of its divisors is an integer number (3543705).

Almost surely, 2^28091262 is an apocalyptic number.

28091262 is an abundant number, since it is smaller than the sum of its proper divisors (28608018).

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

28091262 is a wasteful number, since it uses less digits than its factorization.

28091262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43067.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 28091262 is about 5300.1190552666. The cubic root of 28091262 is about 303.9884503345.

The spelling of 28091262 in words is "twenty-eight million, ninety-one thousand, two hundred sixty-two".