27290226 has 16 divisors (see below), whose sum is σ = 54800928. Its totient is φ = 9060000.

The previous prime is 27290191. The next prime is 27290227. The reversal of 27290226 is 62209272.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27290193 and 27290202.

It is not an unprimeable number, because it can be changed into a prime (27290227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7555 + ... + 10566.

It is an arithmetic number, because the mean of its divisors is an integer number (3425058).

Almost surely, 2^27290226 is an apocalyptic number.

27290226 is an abundant number, since it is smaller than the sum of its proper divisors (27510702).

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

27290226 is a wasteful number, since it uses less digits than its factorization.

27290226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18377.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27290226 is about 5224.0047856027. The cubic root of 27290226 is about 301.0710825011.

Adding to 27290226 its reverse (62209272), we get a palindrome (89499498).

The spelling of 27290226 in words is "twenty-seven million, two hundred ninety thousand, two hundred twenty-six".