27375440 has 40 divisors (see below), whose sum is σ = 67395240. Its totient is φ = 10305536.

The previous prime is 27375433. The next prime is 27375473. The reversal of 27375440 is 4457372.

It can be written as a sum of positive squares in 4 ways, for example, as 11343424 + 16032016 = 3368^2 + 4004^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 27375397 and 27375406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8705 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (1684881).

Almost surely, 2^27375440 is an apocalyptic number.

27375440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27375440 is an abundant number, since it is smaller than the sum of its proper divisors (40019800).

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

27375440 is a wasteful number, since it uses less digits than its factorization.

27375440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159 (or 20153 counting only the distinct ones).

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

The square root of 27375440 is about 5232.1544319716. The cubic root of 27375440 is about 301.3841227118.

The spelling of 27375440 in words is "twenty-seven million, three hundred seventy-five thousand, four hundred forty".