290082321 has 12 divisors (see below), whose sum is σ = 419536260. Its totient is φ = 193144320.

The previous prime is 290082319. The next prime is 290082341. The reversal of 290082321 is 123280092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 175827600 + 114254721 = 13260^2 + 10689^2 .

It is not a de Polignac number, because 290082321 - 2¹ = 290082319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290082311) 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 11 ways as a sum of consecutive naturals, for example, 12640 + ... + 27201.

It is an arithmetic number, because the mean of its divisors is an integer number (34961355).

Almost surely, 2^290082321 is an apocalyptic number.

It is an amenable number.

290082321 is a deficient number, since it is larger than the sum of its proper divisors (129453939).

290082321 is a wasteful number, since it uses less digits than its factorization.

290082321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40656 (or 40653 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 290082321 is about 17031.8032222076. The cubic root of 290082321 is about 661.9732200751.

It can be divided in two parts, 29008 and 2321, that added together give a square (31329 = 177²).

The spelling of 290082321 in words is "two hundred ninety million, eighty-two thousand, three hundred twenty-one".