290828285 has 8 divisors (see below), whose sum is σ = 380720736. Its totient is φ = 211511440.

The previous prime is 290828273. The next prime is 290828341. The reversal of 290828285 is 582828092.

It is a happy number.

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

It is not a de Polignac number, because 290828285 - 2¹⁸ = 290566141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643839 + ... + 2643948.

It is an arithmetic number, because the mean of its divisors is an integer number (47590092).

Almost surely, 2^290828285 is an apocalyptic number.

It is an amenable number.

290828285 is a deficient number, since it is larger than the sum of its proper divisors (89892451).

290828285 is a wasteful number, since it uses less digits than its factorization.

290828285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287803.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 290828285 is about 17053.6883107438. The cubic root of 290828285 is about 662.5401689184.

The spelling of 290828285 in words is "two hundred ninety million, eight hundred twenty-eight thousand, two hundred eighty-five".