27240528 has 160 divisors (see below), whose sum is σ = 89994240. Its totient is φ = 6912000.

The previous prime is 27240527. The next prime is 27240529. The reversal of 27240528 is 82504272.

It is an interprime number because it is at equal distance from previous prime (27240527) and next prime (27240529).

It is a junction number, because it is equal to n+sod(n) for n = 27240495 and 27240504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27240527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108403 + ... + 108653.

It is an arithmetic number, because the mean of its divisors is an integer number (562464).

Almost surely, 2^27240528 is an apocalyptic number.

27240528 is a gapful number since it is divisible by the number (28) 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 27240528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44997120).

27240528 is an abundant number, since it is smaller than the sum of its proper divisors (62753712).

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

27240528 is a wasteful number, since it uses less digits than its factorization.

27240528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 27240528 is about 5219.2459225448. The cubic root of 27240528 is about 300.8882121133. Note that the first 3 decimals are identical.

The spelling of 27240528 in words is "twenty-seven million, two hundred forty thousand, five hundred twenty-eight".