290085898 has 8 divisors (see below), whose sum is σ = 450133380. Its totient is φ = 140041440.

The previous prime is 290085889. The next prime is 290085899. The reversal of 290085898 is 898580092.

It is a happy number.

290085898 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 282340809 + 7745089 = 16803^2 + 2783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (290085899) 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 3 ways as a sum of consecutive naturals, for example, 2500683 + ... + 2500798.

Almost surely, 2^290085898 is an apocalyptic number.

290085898 is a deficient number, since it is larger than the sum of its proper divisors (160047482).

290085898 is a wasteful number, since it uses less digits than its factorization.

290085898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001512.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 290085898 is about 17031.9082313169. The cubic root of 290085898 is about 661.9759409906.

The spelling of 290085898 in words is "two hundred ninety million, eighty-five thousand, eight hundred ninety-eight".