27412220 has 24 divisors (see below), whose sum is σ = 62799408. Its totient is φ = 9968000.

The previous prime is 27412219. The next prime is 27412243. The reversal of 27412220 is 2221472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 27412192 and 27412201.

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, 62081 + ... + 62520.

It is an arithmetic number, because the mean of its divisors is an integer number (2616642).

Almost surely, 2^27412220 is an apocalyptic number.

27412220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27412220 is an abundant number, since it is smaller than the sum of its proper divisors (35387188).

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

27412220 is a wasteful number, since it uses less digits than its factorization.

27412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124621 (or 124619 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 27412220 is about 5235.6680567049. The cubic root of 27412220 is about 301.5190361890.

Adding to 27412220 its reverse (2221472), we get a palindrome (29633692).

The spelling of 27412220 in words is "twenty-seven million, four hundred twelve thousand, two hundred twenty".