27722412 has 48 divisors (see below), whose sum is σ = 72783200. Its totient is φ = 9237888.

The previous prime is 27722371. The next prime is 27722417. The reversal of 27722412 is 21422772.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (27722417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7164 + ... + 10332.

Almost surely, 2^27722412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27722412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36391600).

27722412 is an abundant number, since it is smaller than the sum of its proper divisors (45060788).

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

27722412 is an equidigital number, since it uses as much as digits as its factorization.

27722412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194 (or 3174 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 27722412 is about 5265.2076882114. The cubic root of 27722412 is about 302.6520857171.

It can be divided in two parts, 2772 and 2412, that added together give a square (5184 = 72²).

The spelling of 27722412 in words is "twenty-seven million, seven hundred twenty-two thousand, four hundred twelve".