290066890 has 16 divisors (see below), whose sum is σ = 523404360. Its totient is φ = 115741440.

The previous prime is 290066839. The next prime is 290066897. The reversal of 290066890 is 98660092.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289578289 + 488601 = 17017^2 + 699^2 .

It is not an unprimeable number, because it can be changed into a prime (290066897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31371 + ... + 39550.

Almost surely, 2^290066890 is an apocalyptic number.

290066890 is a deficient number, since it is larger than the sum of its proper divisors (233337470).

290066890 is a wasteful number, since it uses less digits than its factorization.

290066890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 290066890 is about 17031.3502107144. The cubic root of 290066890 is about 661.9614819245.

The spelling of 290066890 in words is "two hundred ninety million, sixty-six thousand, eight hundred ninety".