343640366 has 8 divisors (see below), whose sum is σ = 516340440. Its totient is φ = 171526888.

The previous prime is 343640357. The next prime is 343640369. The reversal of 343640366 is 663046343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×343640366² = 236177402289227912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343640369) 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, 145181 + ... + 147528.

It is an arithmetic number, because the mean of its divisors is an integer number (64542555).

Almost surely, 2^343640366 is an apocalyptic number.

343640366 is a deficient number, since it is larger than the sum of its proper divisors (172700074).

343640366 is a wasteful number, since it uses less digits than its factorization.

343640366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293298.

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 343640366 is about 18537.5393728510. The cubic root of 343640366 is about 700.4353523136.

The spelling of 343640366 in words is "three hundred forty-three million, six hundred forty thousand, three hundred sixty-six".