27457340 has 12 divisors (see below), whose sum is σ = 57660456. Its totient is φ = 10982928.

The previous prime is 27457307. The next prime is 27457343. The reversal of 27457340 is 4375472.

It is a junction number, because it is equal to n+sod(n) for n = 27457297 and 27457306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27457343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686414 + ... + 686453.

It is an arithmetic number, because the mean of its divisors is an integer number (4805038).

Almost surely, 2^27457340 is an apocalyptic number.

27457340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27457340 is an abundant number, since it is smaller than the sum of its proper divisors (30203116).

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

27457340 is a wasteful number, since it uses less digits than its factorization.

27457340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372876 (or 1372874 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 27457340 is about 5239.9751907810. The cubic root of 27457340 is about 301.6843770656.

The spelling of 27457340 in words is "twenty-seven million, four hundred fifty-seven thousand, three hundred forty".