28190160 has 160 divisors (see below), whose sum is σ = 100469760. Its totient is φ = 7257600.

The previous prime is 28190147. The next prime is 28190161. The reversal of 28190160 is 6109182.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28190161) 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, 66750 + ... + 67170.

It is an arithmetic number, because the mean of its divisors is an integer number (627936).

Almost surely, 2^28190160 is an apocalyptic number.

28190160 is a gapful number since it is divisible by the number (20) 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 28190160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50234880).

28190160 is an abundant number, since it is smaller than the sum of its proper divisors (72279600).

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

28190160 is a wasteful number, since it uses less digits than its factorization.

28190160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 28190160 is about 5309.4406485053. The cubic root of 28190160 is about 304.3447727348.

It can be divided in two parts, 281901 and 60, that added together give a square (281961 = 531²).

The spelling of 28190160 in words is "twenty-eight million, one hundred ninety thousand, one hundred sixty".