27081390 has 32 divisors (see below), whose sum is σ = 74280960. Its totient is φ = 6189984.

The previous prime is 27081371. The next prime is 27081407. The reversal of 27081390 is 9318072.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 64270 + ... + 64689.

It is an arithmetic number, because the mean of its divisors is an integer number (2321280).

Almost surely, 2^27081390 is an apocalyptic number.

27081390 is an abundant number, since it is smaller than the sum of its proper divisors (47199570).

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

27081390 is a wasteful number, since it uses less digits than its factorization.

27081390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128976.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 27081390 is about 5203.9782858886. The cubic root of 27081390 is about 300.3011420548.

The spelling of 27081390 in words is "twenty-seven million, eighty-one thousand, three hundred ninety".