20028160 has 36 divisors (see below), whose sum is σ = 47976768. Its totient is φ = 8010752.

The previous prime is 20028121. The next prime is 20028179. The reversal of 20028160 is 6182002.

It is a happy number.

It is a super-2 number, since 2×20028160² = 802254385971200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6544 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (1332688).

Almost surely, 2^20028160 is an apocalyptic number.

20028160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20028160 is an abundant number, since it is smaller than the sum of its proper divisors (27948608).

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

20028160 is an equidigital number, since it uses as much as digits as its factorization.

20028160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15668 (or 15654 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20028160 is about 4475.2832312603. The cubic root of 20028160 is about 271.5690985815.

The spelling of 20028160 in words is "twenty million, twenty-eight thousand, one hundred sixty".