27730148 has 12 divisors (see below), whose sum is σ = 50201340. Its totient is φ = 13386912.

The previous prime is 27730147. The next prime is 27730159. The reversal of 27730148 is 84103772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 22676644 = 2248^2 + 4762^2 .

It is a super-2 number, since 2×27730148² = 1537922216203808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27730147) 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 3 ways as a sum of consecutive naturals, for example, 119411 + ... + 119642.

It is an arithmetic number, because the mean of its divisors is an integer number (4183445).

Almost surely, 2^27730148 is an apocalyptic number.

It is an amenable number.

27730148 is a deficient number, since it is larger than the sum of its proper divisors (22471192).

27730148 is a wasteful number, since it uses less digits than its factorization.

27730148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239086 (or 239084 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 27730148 is about 5265.9422708571. The cubic root of 27730148 is about 302.6802350088.

The spelling of 27730148 in words is "twenty-seven million, seven hundred thirty thousand, one hundred forty-eight".