27261290 has 16 divisors (see below), whose sum is σ = 56080512. Its totient is φ = 9346704.

The previous prime is 27261281. The next prime is 27261301. The reversal of 27261290 is 9216272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194654 + ... + 194793.

It is an arithmetic number, because the mean of its divisors is an integer number (3505032).

Almost surely, 2^27261290 is an apocalyptic number.

27261290 is an abundant number, since it is smaller than the sum of its proper divisors (28819222).

27261290 is a wasteful number, since it uses less digits than its factorization.

27261290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389461.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 27261290 is about 5221.2345283467. The cubic root of 27261290 is about 300.9646356763.

The spelling of 27261290 in words is "twenty-seven million, two hundred sixty-one thousand, two hundred ninety".