27320290 has 16 divisors (see below), whose sum is σ = 51765120. Its totient is φ = 10352880.

The previous prime is 27320273. The next prime is 27320299. The reversal of 27320290 is 9202372.

It is not an unprimeable number, because it can be changed into a prime (27320299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71706 + ... + 72085.

It is an arithmetic number, because the mean of its divisors is an integer number (3235320).

Almost surely, 2^27320290 is an apocalyptic number.

27320290 is a deficient number, since it is larger than the sum of its proper divisors (24444830).

27320290 is a wasteful number, since it uses less digits than its factorization.

27320290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143817.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 27320290 is about 5226.8814794292. The cubic root of 27320290 is about 301.1815992267.

The spelling of 27320290 in words is "twenty-seven million, three hundred twenty thousand, two hundred ninety".