27242018 has 4 divisors (see below), whose sum is σ = 40863030. Its totient is φ = 13621008.

The previous prime is 27242003. The next prime is 27242021. The reversal of 27242018 is 81024272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20043529 + 7198489 = 4477^2 + 2683^2 .

It is a super-5 number, since 5×27242018⁵ (a number of 38 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6810503 + ... + 6810506.

Almost surely, 2^27242018 is an apocalyptic number.

27242018 is a deficient number, since it is larger than the sum of its proper divisors (13621012).

27242018 is a wasteful number, since it uses less digits than its factorization.

27242018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621011.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 27242018 is about 5219.3886615197. The cubic root of 27242018 is about 300.8936979989.

The spelling of 27242018 in words is "twenty-seven million, two hundred forty-two thousand, eighteen".