27053440 has 64 divisors (see below), whose sum is σ = 66316320. Its totient is φ = 10547200.

The previous prime is 27053423. The next prime is 27053489. The reversal of 27053440 is 4435072.

It is a tau number, because it is divible by the number of its divisors (64).

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, 25725 + ... + 26755.

Almost surely, 2^27053440 is an apocalyptic number.

27053440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33158160).

27053440 is an abundant number, since it is smaller than the sum of its proper divisors (39262880).

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

27053440 is a wasteful number, since it uses less digits than its factorization.

27053440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 27053440 is about 5201.2921471496. The cubic root of 27053440 is about 300.1977954871.

The spelling of 27053440 in words is "twenty-seven million, fifty-three thousand, four hundred forty".