290434286 has 4 divisors (see below), whose sum is σ = 435651432. Its totient is φ = 145217142.

The previous prime is 290434279. The next prime is 290434289. The reversal of 290434286 is 682434092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290434289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72608570 + ... + 72608573.

It is an arithmetic number, because the mean of its divisors is an integer number (108912858).

Almost surely, 2^290434286 is an apocalyptic number.

290434286 is a deficient number, since it is larger than the sum of its proper divisors (145217146).

290434286 is a wasteful number, since it uses less digits than its factorization.

290434286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145217145.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 290434286 is about 17042.1326717051. The cubic root of 290434286 is about 662.2408420791.

The spelling of 290434286 in words is "two hundred ninety million, four hundred thirty-four thousand, two hundred eighty-six".