27838340 has 12 divisors (see below), whose sum is σ = 58460556. Its totient is φ = 11135328.

The previous prime is 27838301. The next prime is 27838351. The reversal of 27838340 is 4383872.

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 16128256 = 3422^2 + 4016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27838340.

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 3 ways as a sum of consecutive naturals, for example, 695939 + ... + 695978.

It is an arithmetic number, because the mean of its divisors is an integer number (4871713).

Almost surely, 2^27838340 is an apocalyptic number.

27838340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27838340 is an abundant number, since it is smaller than the sum of its proper divisors (30622216).

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

27838340 is a wasteful number, since it uses less digits than its factorization.

27838340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391926 (or 1391924 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 27838340 is about 5276.2050756202. The cubic root of 27838340 is about 303.0733700992.

The spelling of 27838340 in words is "twenty-seven million, eight hundred thirty-eight thousand, three hundred forty".