27042220 has 12 divisors (see below), whose sum is σ = 56788704. Its totient is φ = 10816880.

The previous prime is 27042203. The next prime is 27042221. The reversal of 27042220 is 2224072.

It is not an unprimeable number, because it can be changed into a prime (27042221) 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, 676036 + ... + 676075.

It is an arithmetic number, because the mean of its divisors is an integer number (4732392).

Almost surely, 2^27042220 is an apocalyptic number.

27042220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27042220 is an abundant number, since it is smaller than the sum of its proper divisors (29746484).

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

27042220 is a wasteful number, since it uses less digits than its factorization.

27042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352120 (or 1352118 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 27042220 is about 5200.2134571573. The cubic root of 27042220 is about 300.1562889355.

Adding to 27042220 its reverse (2224072), we get a palindrome (29266292).

The spelling of 27042220 in words is "twenty-seven million, forty-two thousand, two hundred twenty".