290052266 has 24 divisors (see below), whose sum is σ = 535885956. Its totient is φ = 116995200.

The previous prime is 290052263. The next prime is 290052289. The reversal of 290052266 is 662250092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 288150625 + 1901641 = 16975^2 + 1379^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (290052263) by changing a digit.

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, 85385 + ... + 88716.

Almost surely, 2^290052266 is an apocalyptic number.

290052266 is a deficient number, since it is larger than the sum of its proper divisors (245833690).

290052266 is a wasteful number, since it uses less digits than its factorization.

290052266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174134 (or 174127 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 290052266 is about 17030.9208793888. The cubic root of 290052266 is about 661.9503572635.

The spelling of 290052266 in words is "two hundred ninety million, fifty-two thousand, two hundred sixty-six".