27378752 has 28 divisors (see below), whose sum is σ = 55228236. Its totient is φ = 13463040.

The previous prime is 27378751. The next prime is 27378761. The reversal of 27378752 is 25787372.

It can be written as a sum of positive squares in 2 ways, for example, as 10601536 + 16777216 = 3256^2 + 4096^2 .

It is a super-2 number, since 2×27378752² = 1499192122155008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27378751) 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, 398 + ... + 7410.

It is an arithmetic number, because the mean of its divisors is an integer number (1972437).

Almost surely, 2^27378752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27378752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27614118).

27378752 is an abundant number, since it is smaller than the sum of its proper divisors (27849484).

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

27378752 is an equidigital number, since it uses as much as digits as its factorization.

27378752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086 (or 7076 counting only the distinct ones).

The product of its digits is 164640, while the sum is 41.

The square root of 27378752 is about 5232.4709268184. The cubic root of 27378752 is about 301.3962764764.

The spelling of 27378752 in words is "twenty-seven million, three hundred seventy-eight thousand, seven hundred fifty-two".