27673440 has 48 divisors (see below), whose sum is σ = 87172848. Its totient is φ = 7379456.

The previous prime is 27673423. The next prime is 27673441. The reversal of 27673440 is 4437672.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27673441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28347 + ... + 29306.

It is an arithmetic number, because the mean of its divisors is an integer number (1816101).

Almost surely, 2^27673440 is an apocalyptic number.

27673440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27673440 is an abundant number, since it is smaller than the sum of its proper divisors (59499408).

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

27673440 is a wasteful number, since it uses less digits than its factorization.

27673440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57671 (or 57663 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 27673440 is about 5260.5551037890. Note that the first 3 decimals coincide. The cubic root of 27673440 is about 302.4737677319.

The spelling of 27673440 in words is "twenty-seven million, six hundred seventy-three thousand, four hundred forty".