343211642 has 4 divisors (see below), whose sum is σ = 514817466. Its totient is φ = 171605820.

The previous prime is 343211639. The next prime is 343211647. The reversal of 343211642 is 246112343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246112343 = 1489 ⋅165287.

It can be written as a sum of positive squares in only one way, i.e., 324036001 + 19175641 = 18001^2 + 4379^2 .

It is not an unprimeable number, because it can be changed into a prime (343211647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85802909 + ... + 85802912.

Almost surely, 2^343211642 is an apocalyptic number.

343211642 is a deficient number, since it is larger than the sum of its proper divisors (171605824).

343211642 is a wasteful number, since it uses less digits than its factorization.

343211642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171605823.

The product of its digits is 3456, while the sum is 26.

The square root of 343211642 is about 18525.9720932533. The cubic root of 343211642 is about 700.1439445476.

Adding to 343211642 its reverse (246112343), we get a palindrome (589323985).

The spelling of 343211642 in words is "three hundred forty-three million, two hundred eleven thousand, six hundred forty-two".