27995490 has 32 divisors (see below), whose sum is σ = 74655360. Its totient is φ = 7465392.

The previous prime is 27995477. The next prime is 27995521. The reversal of 27995490 is 9459972.

27995490 is a `hidden beast` number, since 2 + 79 + 95 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51574 + ... + 52113.

It is an arithmetic number, because the mean of its divisors is an integer number (2332980).

Almost surely, 2^27995490 is an apocalyptic number.

27995490 is an abundant number, since it is smaller than the sum of its proper divisors (46659870).

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

27995490 is a wasteful number, since it uses less digits than its factorization.

27995490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103703 (or 103697 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 27995490 is about 5291.0764500241. The cubic root of 27995490 is about 303.6425927214.

The spelling of 27995490 in words is "twenty-seven million, nine hundred ninety-five thousand, four hundred ninety".