290243984 has 20 divisors (see below), whose sum is σ = 577547484. Its totient is φ = 141199488.

The previous prime is 290243971. The next prime is 290243999. The reversal of 290243984 is 489342092.

It can be written as a sum of positive squares in 2 ways, for example, as 148157584 + 142086400 = 12172^2 + 11920^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 244547 + ... + 245730.

Almost surely, 2^290243984 is an apocalyptic number.

It is an amenable number.

290243984 is a deficient number, since it is larger than the sum of its proper divisors (287303500).

290243984 is a wasteful number, since it uses less digits than its factorization.

290243984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490322 (or 490316 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 290243984 is about 17036.5484767308. The cubic root of 290243984 is about 662.0961698896.

The spelling of 290243984 in words is "two hundred ninety million, two hundred forty-three thousand, nine hundred eighty-four".