343400319 has 12 divisors (see below), whose sum is σ = 522129400. Its totient is φ = 216884304.

The previous prime is 343400261. The next prime is 343400363. The reversal of 343400319 is 913004343.

343400319 is a `hidden beast` number, since 3 + 4 + 340 + 0 + 319 = 666.

It is not a de Polignac number, because 343400319 - 2²⁴ = 326623103 is a prime.

It is a super-2 number, since 2×343400319² = 235847558178603522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343400292 and 343400301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343400389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1003924 + ... + 1004265.

Almost surely, 2^343400319 is an apocalyptic number.

343400319 is a deficient number, since it is larger than the sum of its proper divisors (178729081).

343400319 is a wasteful number, since it uses less digits than its factorization.

343400319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008214 (or 2008211 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 343400319 is about 18531.0636230088. The cubic root of 343400319 is about 700.2722199742.

The spelling of 343400319 in words is "three hundred forty-three million, four hundred thousand, three hundred nineteen".