27640136 has 64 divisors (see below), whose sum is σ = 57542400. Its totient is φ = 12400128.

The previous prime is 27640057. The next prime is 27640141. The reversal of 27640136 is 63104672.

27640136 = T₁₁₃ + T₁₁₄ + ... + T₅₅₀.

It is a junction number, because it is equal to n+sod(n) for n = 27640099 and 27640108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378596 + ... + 378668.

It is an arithmetic number, because the mean of its divisors is an integer number (899100).

Almost surely, 2^27640136 is an apocalyptic number.

It is an amenable number.

27640136 is an abundant number, since it is smaller than the sum of its proper divisors (29902264).

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

27640136 is a wasteful number, since it uses less digits than its factorization.

27640136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 27640136 is about 5257.3887054316. The cubic root of 27640136 is about 302.3523802193.

The spelling of 27640136 in words is "twenty-seven million, six hundred forty thousand, one hundred thirty-six".