28196128 has 24 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 14064960.

The previous prime is 28196123. The next prime is 28196153. The reversal of 28196128 is 82169182.

It is not an unprimeable number, because it can be changed into a prime (28196123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18433 + ... + 19903.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 2^28196128 is an apocalyptic number.

It is an amenable number.

28196128 is a deficient number, since it is larger than the sum of its proper divisors (27445472).

28196128 is a wasteful number, since it uses less digits than its factorization.

28196128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2072 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 28196128 is about 5310.0026365342. The cubic root of 28196128 is about 304.3662483306.

The spelling of 28196128 in words is "twenty-eight million, one hundred ninety-six thousand, one hundred twenty-eight".