27378472 has 32 divisors (see below), whose sum is σ = 56210400. Its totient is φ = 12398400.

The previous prime is 27378457. The next prime is 27378473. The reversal of 27378472 is 27487372.

It is not an unprimeable number, because it can be changed into a prime (27378473) 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, 36679 + ... + 37417.

It is an arithmetic number, because the mean of its divisors is an integer number (1756575).

Almost surely, 2^27378472 is an apocalyptic number.

27378472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27378472 is an abundant number, since it is smaller than the sum of its proper divisors (28831928).

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

27378472 is a wasteful number, since it uses less digits than its factorization.

27378472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1173 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 27378472 is about 5232.4441707485. Note that the first 3 decimals coincide. The cubic root of 27378472 is about 301.3952490222.

Subtracting 27378472 from its reverse (27487372), we obtain a square (108900 = 330²).

The spelling of 27378472 in words is "twenty-seven million, three hundred seventy-eight thousand, four hundred seventy-two".