27820030 has 16 divisors (see below), whose sum is σ = 57229920. Its totient is φ = 9538272.

The previous prime is 27820021. The next prime is 27820043. The reversal of 27820030 is 3002872.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27819983 and 27820010.

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, 198645 + ... + 198784.

It is an arithmetic number, because the mean of its divisors is an integer number (3576870).

Almost surely, 2^27820030 is an apocalyptic number.

27820030 is an abundant number, since it is smaller than the sum of its proper divisors (29409890).

27820030 is a wasteful number, since it uses less digits than its factorization.

27820030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397443.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 27820030 is about 5274.4696415848. The cubic root of 27820030 is about 303.0069091142.

The spelling of 27820030 in words is "twenty-seven million, eight hundred twenty thousand, thirty".