28080382 has 16 divisors (see below), whose sum is σ = 46230912. Its totient is φ = 12685720.

The previous prime is 28080361. The next prime is 28080397. The reversal of 28080382 is 28308082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148 + ... + 7495.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^28080382 is an apocalyptic number.

28080382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28080382 is a deficient number, since it is larger than the sum of its proper divisors (18150530).

28080382 is a wasteful number, since it uses less digits than its factorization.

28080382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28080382 is about 5299.0925638264. The cubic root of 28080382 is about 303.9491994407.

The spelling of 28080382 in words is "twenty-eight million, eighty thousand, three hundred eighty-two".