356290243 has 4 divisors (see below), whose sum is σ = 359443368. Its totient is φ = 353137120.

The previous prime is 356290189. The next prime is 356290247. The reversal of 356290243 is 342092653.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356290243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356290199 and 356290208.

It is not an unprimeable number, because it can be changed into a prime (356290247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576393 + ... + 1576618.

It is an arithmetic number, because the mean of its divisors is an integer number (89860842).

Almost surely, 2^356290243 is an apocalyptic number.

356290243 is a deficient number, since it is larger than the sum of its proper divisors (3153125).

356290243 is a wasteful number, since it uses less digits than its factorization.

356290243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153124.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 356290243 is about 18875.6521211851. The cubic root of 356290243 is about 708.9266616139.

The spelling of 356290243 in words is "three hundred fifty-six million, two hundred ninety thousand, two hundred forty-three".