290871382 has 8 divisors (see below), whose sum is σ = 440543376. Its totient is φ = 144023592.

The previous prime is 290871359. The next prime is 290871389. The reversal of 290871382 is 283178092.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290871389) by changing a digit.

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, 705793 + ... + 706204.

It is an arithmetic number, because the mean of its divisors is an integer number (55067922).

Almost surely, 2^290871382 is an apocalyptic number.

290871382 is a deficient number, since it is larger than the sum of its proper divisors (149671994).

290871382 is a wasteful number, since it uses less digits than its factorization.

290871382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412102.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 290871382 is about 17054.9518322392. The cubic root of 290871382 is about 662.5728939373.

The spelling of 290871382 in words is "two hundred ninety million, eight hundred seventy-one thousand, three hundred eighty-two".