28506192 has 80 divisors (see below), whose sum is σ = 86536128. Its totient is φ = 7971840.

The previous prime is 28506187. The next prime is 28506197. The reversal of 28506192 is 29160582.

It is an interprime number because it is at equal distance from previous prime (28506187) and next prime (28506197).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28506197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4788 + ... + 8940.

Almost surely, 2^28506192 is an apocalyptic number.

28506192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28506192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43268064).

28506192 is an abundant number, since it is smaller than the sum of its proper divisors (58029936).

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

28506192 is a wasteful number, since it uses less digits than its factorization.

28506192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188 (or 4182 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 28506192 is about 5339.1190284540. The cubic root of 28506192 is about 305.4778570386.

The spelling of 28506192 in words is "twenty-eight million, five hundred six thousand, one hundred ninety-two".