343868406 has 32 divisors (see below), whose sum is σ = 787449600. Its totient is φ = 98065056.

The previous prime is 343868389. The next prime is 343868431. The reversal of 343868406 is 604868343.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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, 16045 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (24607800).

Almost surely, 2^343868406 is an apocalyptic number.

343868406 is an abundant number, since it is smaller than the sum of its proper divisors (443581194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343868406 is a wasteful number, since it uses less digits than its factorization.

343868406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15268.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 343868406 is about 18543.6891151680. The cubic root of 343868406 is about 700.5902545262.

The spelling of 343868406 in words is "three hundred forty-three million, eight hundred sixty-eight thousand, four hundred six".