27545140 has 24 divisors (see below), whose sum is σ = 66108672. Its totient is φ = 9444000.

The previous prime is 27545137. The next prime is 27545159. The reversal of 27545140 is 4154572.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 27545099 and 27545108.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 98236 + ... + 98515.

It is an arithmetic number, because the mean of its divisors is an integer number (2754528).

Almost surely, 2^27545140 is an apocalyptic number.

27545140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27545140 is an abundant number, since it is smaller than the sum of its proper divisors (38563532).

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

27545140 is a wasteful number, since it uses less digits than its factorization.

27545140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196767 (or 196765 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 27545140 is about 5248.3464062503. The cubic root of 27545140 is about 302.0055990658.

The spelling of 27545140 in words is "twenty-seven million, five hundred forty-five thousand, one hundred forty".