343402011 has 28 divisors (see below), whose sum is σ = 516376920. Its totient is φ = 228264480.

The previous prime is 343402009. The next prime is 343402061. The reversal of 343402011 is 110204343.

It is not a de Polignac number, because 343402011 - 2¹ = 343402009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343402061) 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 27 ways as a sum of consecutive naturals, for example, 450871 + ... + 451631.

Almost surely, 2^343402011 is an apocalyptic number.

343402011 is a deficient number, since it is larger than the sum of its proper divisors (172974909).

343402011 is an frugal number, since it uses more digits than its factorization.

343402011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 343402011 is about 18531.1092760255. The cubic root of 343402011 is about 700.2733700980.

Adding to 343402011 its reverse (110204343), we get a palindrome (453606354).

The spelling of 343402011 in words is "three hundred forty-three million, four hundred two thousand, eleven".