27952290 has 48 divisors (see below), whose sum is σ = 75374208. Its totient is φ = 7453296.

The previous prime is 27952289. The next prime is 27952303. The reversal of 27952290 is 9225972.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3322 + ... + 8181.

It is an arithmetic number, because the mean of its divisors is an integer number (1570296).

Almost surely, 2^27952290 is an apocalyptic number.

27952290 is an abundant number, since it is smaller than the sum of its proper divisors (47421918).

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

27952290 is a wasteful number, since it uses less digits than its factorization.

27952290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525 (or 11513 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 27952290 is about 5286.9925288391. The cubic root of 27952290 is about 303.4863281117.

The spelling of 27952290 in words is "twenty-seven million, nine hundred fifty-two thousand, two hundred ninety".