290800992 has 24 divisors (see below), whose sum is σ = 763352856. Its totient is φ = 96933632.

The previous prime is 290800973. The next prime is 290801057. The reversal of 290800992 is 299008092.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 290800992.

It is a congruent number.

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, 1514493 + ... + 1514684.

It is an arithmetic number, because the mean of its divisors is an integer number (31806369).

Almost surely, 2^290800992 is an apocalyptic number.

It is an amenable number.

290800992 is an abundant number, since it is smaller than the sum of its proper divisors (472551864).

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

290800992 is a wasteful number, since it uses less digits than its factorization.

290800992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029190 (or 3029182 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 290800992 is about 17052.8880838408. Note that the first 3 decimals coincide. The cubic root of 290800992 is about 662.5194427426.

The spelling of 290800992 in words is "two hundred ninety million, eight hundred thousand, nine hundred ninety-two".