27995240 has 64 divisors (see below), whose sum is σ = 77535360. Its totient is φ = 8858880.

The previous prime is 27995207. The next prime is 27995291. The reversal of 27995240 is 4259972.

It is a junction number, because it is equal to n+sod(n) for n = 27995194 and 27995203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206 + ... + 7485.

It is an arithmetic number, because the mean of its divisors is an integer number (1211490).

Almost surely, 2^27995240 is an apocalyptic number.

27995240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27995240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38767680).

27995240 is an abundant number, since it is smaller than the sum of its proper divisors (49540120).

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

27995240 is a wasteful number, since it uses less digits than its factorization.

27995240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7722 (or 7718 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 27995240 is about 5291.0528252891. The cubic root of 27995240 is about 303.6416888749.

The spelling of 27995240 in words is "twenty-seven million, nine hundred ninety-five thousand, two hundred forty".