27078440 has 16 divisors (see below), whose sum is σ = 60926580. Its totient is φ = 10831360.

The previous prime is 27078427. The next prime is 27078473. The reversal of 27078440 is 4487072.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 925444 = 5114^2 + 962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27078397 and 27078406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338441 + ... + 338520.

Almost surely, 2^27078440 is an apocalyptic number.

27078440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27078440 is an abundant number, since it is smaller than the sum of its proper divisors (33848140).

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

27078440 is a wasteful number, since it uses less digits than its factorization.

27078440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676972 (or 676968 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 27078440 is about 5203.6948411681. The cubic root of 27078440 is about 300.2902376350.

The spelling of 27078440 in words is "twenty-seven million, seventy-eight thousand, four hundred forty".