27906120 has 256 divisors, whose sum is σ = 106272000. Its totient is φ = 6531840.

The previous prime is 27906031. The next prime is 27906127. The reversal of 27906120 is 2160972.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (27906127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 962266 + ... + 962294.

It is an arithmetic number, because the mean of its divisors is an integer number (415125).

Almost surely, 2^27906120 is an apocalyptic number.

27906120 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 27906120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53136000).

27906120 is an abundant number, since it is smaller than the sum of its proper divisors (78365880).

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

27906120 is a wasteful number, since it uses less digits than its factorization.

27906120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 27906120 is about 5282.6243478029. The cubic root of 27906120 is about 303.3191422201.

The spelling of 27906120 in words is "twenty-seven million, nine hundred six thousand, one hundred twenty".