27640130 has 32 divisors (see below), whose sum is σ = 60206976. Its totient is φ = 8918784.

The previous prime is 27640057. The next prime is 27640141. The reversal of 27640130 is 3104672.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27640096 and 27640105.

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, 10424 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (1881468).

Almost surely, 2^27640130 is an apocalyptic number.

27640130 is an abundant number, since it is smaller than the sum of its proper divisors (32566846).

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

27640130 is a wasteful number, since it uses less digits than its factorization.

27640130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23258.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 27640130 is about 5257.3881348061. The cubic root of 27640130 is about 302.3523583416.

The spelling of 27640130 in words is "twenty-seven million, six hundred forty thousand, one hundred thirty".