27120020 has 24 divisors (see below), whose sum is σ = 57057504. Its totient is φ = 10827936.

The previous prime is 27120019. The next prime is 27120043. The reversal of 27120020 is 2002172.

It is a junction number, because it is equal to n+sod(n) for n = 27119977 and 27120004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14879 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (2377396).

Almost surely, 2^27120020 is an apocalyptic number.

27120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27120020 is an abundant number, since it is smaller than the sum of its proper divisors (29937484).

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

27120020 is a wasteful number, since it uses less digits than its factorization.

27120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519 (or 2517 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 27120020 is about 5207.6885467547. The cubic root of 27120020 is about 300.4438614846.

Adding to 27120020 its reverse (2002172), we get a palindrome (29122192).

The spelling of 27120020 in words is "twenty-seven million, one hundred twenty thousand, twenty".