290780992 has 28 divisors (see below), whose sum is σ = 595636096. Its totient is φ = 140699520.

The previous prime is 290780983. The next prime is 290781031. The reversal of 290780992 is 299087092.

It is a congruent number.

It is an unprimeable number.

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, 71298 + ... + 75265.

Almost surely, 2^290780992 is an apocalyptic number.

It is an amenable number.

290780992 is an abundant number, since it is smaller than the sum of its proper divisors (304855104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290780992 is a wasteful number, since it uses less digits than its factorization.

290780992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146606 (or 146596 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 290780992 is about 17052.3016628255. The cubic root of 290780992 is about 662.5042540133.

The spelling of 290780992 in words is "two hundred ninety million, seven hundred eighty thousand, nine hundred ninety-two".