290352393 has 24 divisors (see below), whose sum is σ = 427789440. Its totient is φ = 189715680.

The previous prime is 290352289. The next prime is 290352409. The reversal of 290352393 is 393253092.

It is not a de Polignac number, because 290352393 - 2²⁴ = 273575177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290352493) 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 23 ways as a sum of consecutive naturals, for example, 245263 + ... + 246443.

It is an arithmetic number, because the mean of its divisors is an integer number (17824560).

Almost surely, 2^290352393 is an apocalyptic number.

It is an amenable number.

290352393 is a deficient number, since it is larger than the sum of its proper divisors (137437047).

290352393 is a wasteful number, since it uses less digits than its factorization.

290352393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 290352393 is about 17039.7298394077. The cubic root of 290352393 is about 662.1785927855.

It can be divided in two parts, 2903523 and 93, that added together give a square (2903616 = 1704²).

The spelling of 290352393 in words is "two hundred ninety million, three hundred fifty-two thousand, three hundred ninety-three".