27985230 has 256 divisors, whose sum is σ = 98703360. Its totient is φ = 5474304.

The previous prime is 27985211. The next prime is 27985253. The reversal of 27985230 is 3258972.

27985230 = 613² + 614² + ... + 679².

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 417657 + ... + 417723.

It is an arithmetic number, because the mean of its divisors is an integer number (385560).

Almost surely, 2^27985230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27985230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49351680).

27985230 is an abundant number, since it is smaller than the sum of its proper divisors (70718130).

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

27985230 is a wasteful number, since it uses less digits than its factorization.

27985230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 27985230 is about 5290.1068042148. The cubic root of 27985230 is about 303.6054944404.

The spelling of 27985230 in words is "twenty-seven million, nine hundred eighty-five thousand, two hundred thirty".