27740090 has 32 divisors (see below), whose sum is σ = 60424704. Its totient is φ = 8951040.

The previous prime is 27740051. The next prime is 27740099. The reversal of 27740090 is 9004772.

It is not an unprimeable number, because it can be changed into a prime (27740099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10466 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (1888272).

Almost surely, 2^27740090 is an apocalyptic number.

27740090 is an abundant number, since it is smaller than the sum of its proper divisors (32684614).

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

27740090 is a wasteful number, since it uses less digits than its factorization.

27740090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 27740090 is about 5266.8861768601. The cubic root of 27740090 is about 302.7164036742.

The spelling of 27740090 in words is "twenty-seven million, seven hundred forty thousand, ninety".