27722044 has 18 divisors (see below), whose sum is σ = 56434560. Its totient is φ = 11880792.

The previous prime is 27722033. The next prime is 27722047. The reversal of 27722044 is 44022772.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27722047) 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 5 ways as a sum of consecutive naturals, for example, 70524 + ... + 70915.

Almost surely, 2^27722044 is an apocalyptic number.

It is an amenable number.

27722044 is an abundant number, since it is smaller than the sum of its proper divisors (28712516).

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

27722044 is a wasteful number, since it uses less digits than its factorization.

27722044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141457 (or 141448 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 27722044 is about 5265.1727417056. The cubic root of 27722044 is about 302.6507465303.

The spelling of 27722044 in words is "twenty-seven million, seven hundred twenty-two thousand, forty-four".