28058292 has 48 divisors (see below), whose sum is σ = 73953600. Its totient is φ = 9197280.

The previous prime is 28058287. The next prime is 28058293. The reversal of 28058292 is 29285082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28058293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4459 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (1540700).

Almost surely, 2^28058292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28058292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36976800).

28058292 is an abundant number, since it is smaller than the sum of its proper divisors (45895308).

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

28058292 is a wasteful number, since it uses less digits than its factorization.

28058292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333 (or 4325 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28058292 is about 5297.0078346176. The cubic root of 28058292 is about 303.8694759382.

The spelling of 28058292 in words is "twenty-eight million, fifty-eight thousand, two hundred ninety-two".