343865401 has 16 divisors (see below), whose sum is σ = 404510400. Its totient is φ = 288921600.

The previous prime is 343865381. The next prime is 343865413. The reversal of 343865401 is 104568343.

It is a happy number.

It is not a de Polignac number, because 343865401 - 2⁵ = 343865369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343865471) by changing a digit.

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, 11496 + ... + 28633.

It is an arithmetic number, because the mean of its divisors is an integer number (25281900).

Almost surely, 2^343865401 is an apocalyptic number.

It is an amenable number.

343865401 is a deficient number, since it is larger than the sum of its proper divisors (60644999).

343865401 is a wasteful number, since it uses less digits than its factorization.

343865401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40200.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 343865401 is about 18543.6080901210. The cubic root of 343865401 is about 700.5882137457.

The spelling of 343865401 in words is "three hundred forty-three million, eight hundred sixty-five thousand, four hundred one".