351684243 has 24 divisors (see below), whose sum is σ = 551982080. Its totient is φ = 214948080.

The previous prime is 351684227. The next prime is 351684257. The reversal of 351684243 is 342486153.

351684243 is a `hidden beast` number, since 351 + 68 + 4 + 243 = 666.

It is not a de Polignac number, because 351684243 - 2⁴ = 351684227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351684198 and 351684207.

It is not an unprimeable number, because it can be changed into a prime (351684043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27871 + ... + 38472.

Almost surely, 2^351684243 is an apocalyptic number.

351684243 is a deficient number, since it is larger than the sum of its proper divisors (200297837).

351684243 is a wasteful number, since it uses less digits than its factorization.

351684243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66399 (or 66396 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 351684243 is about 18753.2461989918. The cubic root of 351684243 is about 705.8584803826.

The spelling of 351684243 in words is "three hundred fifty-one million, six hundred eighty-four thousand, two hundred forty-three".