290397039 has 16 divisors (see below), whose sum is σ = 401090400. Its totient is φ = 186669056.

The previous prime is 290397031. The next prime is 290397049. The reversal of 290397039 is 930793092.

It is not a de Polignac number, because 290397039 - 2³ = 290397031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290397031) 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 in 15 ways as a sum of consecutive naturals, for example, 79027 + ... + 82619.

It is an arithmetic number, because the mean of its divisors is an integer number (25068150).

Almost surely, 2^290397039 is an apocalyptic number.

290397039 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

290397039 is a deficient number, since it is larger than the sum of its proper divisors (110693361).

290397039 is a wasteful number, since it uses less digits than its factorization.

290397039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 290397039 is about 17041.0398450329. The cubic root of 290397039 is about 662.2125309827.

The spelling of 290397039 in words is "two hundred ninety million, three hundred ninety-seven thousand, thirty-nine".