28198092 has 96 divisors (see below), whose sum is σ = 76769280. Its totient is φ = 7983360.

The previous prime is 28198081. The next prime is 28198097. The reversal of 28198092 is 29089182.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 28198092.

It is not an unprimeable number, because it can be changed into a prime (28198097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103917 + ... + 104187.

It is an arithmetic number, because the mean of its divisors is an integer number (799680).

Almost surely, 2^28198092 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 28198092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38384640).

28198092 is an abundant number, since it is smaller than the sum of its proper divisors (48571188).

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

28198092 is a wasteful number, since it uses less digits than its factorization.

28198092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 28198092 is about 5310.1875673087. The cubic root of 28198092 is about 304.3733150389.

Adding to 28198092 its product of nonzero digits (20736), we get a triangular number (28218828 = T₇₅₁₂).

The spelling of 28198092 in words is "twenty-eight million, one hundred ninety-eight thousand, ninety-two".