290689241 has 4 divisors (see below), whose sum is σ = 290989584. Its totient is φ = 290388900.

The previous prime is 290689237. The next prime is 290689253. The reversal of 290689241 is 142986092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290689241 - 2² = 290689237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290689261) 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 3 ways as a sum of consecutive naturals, for example, 148715 + ... + 150656.

It is an arithmetic number, because the mean of its divisors is an integer number (72747396).

Almost surely, 2^290689241 is an apocalyptic number.

It is an amenable number.

290689241 is a deficient number, since it is larger than the sum of its proper divisors (300343).

290689241 is an equidigital number, since it uses as much as digits as its factorization.

290689241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300342.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 290689241 is about 17049.6111685868. The cubic root of 290689241 is about 662.4345660306.

The spelling of 290689241 in words is "two hundred ninety million, six hundred eighty-nine thousand, two hundred forty-one".