27220744 has 8 divisors (see below), whose sum is σ = 51038910. Its totient is φ = 13610368.

The previous prime is 27220733. The next prime is 27220777. The reversal of 27220744 is 44702272.

It can be written as a sum of positive squares in only one way, i.e., 17222500 + 9998244 = 4150^2 + 3162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 as a sum of consecutive naturals, namely, 1701289 + ... + 1701304.

Almost surely, 2^27220744 is an apocalyptic number.

It is an amenable number.

27220744 is a deficient number, since it is larger than the sum of its proper divisors (23818166).

27220744 is a wasteful number, since it uses less digits than its factorization.

27220744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402599 (or 3402595 counting only the distinct ones).

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

The square root of 27220744 is about 5217.3502853460. The cubic root of 27220744 is about 300.8153523645.

The spelling of 27220744 in words is "twenty-seven million, two hundred twenty thousand, seven hundred forty-four".