290868066 has 24 divisors (see below), whose sum is σ = 630774144. Its totient is φ = 96869880.

The previous prime is 290868047. The next prime is 290868073. The reversal of 290868066 is 660868092.

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 11 ways as a sum of consecutive naturals, for example, 15595 + ... + 28721.

It is an arithmetic number, because the mean of its divisors is an integer number (26282256).

Almost surely, 2^290868066 is an apocalyptic number.

290868066 is an abundant number, since it is smaller than the sum of its proper divisors (339906078).

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

290868066 is a wasteful number, since it uses less digits than its factorization.

290868066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14366 (or 14363 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 290868066 is about 17054.8546167946. The cubic root of 290868066 is about 662.5703761004.

The spelling of 290868066 in words is "two hundred ninety million, eight hundred sixty-eight thousand, sixty-six".