27520920 has 192 divisors, whose sum is σ = 104382720. Its totient is φ = 6158592.

The previous prime is 27520919. The next prime is 27520951. The reversal of 27520920 is 2902572.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168759 + ... + 168921.

It is an arithmetic number, because the mean of its divisors is an integer number (543660).

Almost surely, 2^27520920 is an apocalyptic number.

27520920 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 27520920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52191360).

27520920 is an abundant number, since it is smaller than the sum of its proper divisors (76861800).

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

27520920 is a wasteful number, since it uses less digits than its factorization.

27520920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 27520920 is about 5246.0385053867. The cubic root of 27520920 is about 301.9170568823.

The spelling of 27520920 in words is "twenty-seven million, five hundred twenty thousand, nine hundred twenty".