2143346242 has 8 divisors (see below), whose sum is σ = 3219407676. Its totient is φ = 1070210352.

The previous prime is 2143346237. The next prime is 2143346251. The reversal of 2143346242 is 2426433412.

It can be written as a sum of positive squares in 2 ways, for example, as 1805485081 + 337861161 = 42491^2 + 18381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2143346242² = 9187866226191045128, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 729553 + ... + 732484.

Almost surely, 2^2143346242 is an apocalyptic number.

2143346242 is a deficient number, since it is larger than the sum of its proper divisors (1076061434).

2143346242 is a wasteful number, since it uses less digits than its factorization.

2143346242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462772.

The product of its digits is 27648, while the sum is 31.

The square root of 2143346242 is about 46296.2875617473. The cubic root of 2143346242 is about 1289.3300693904.

Adding to 2143346242 its reverse (2426433412), we get a palindrome (4569779654).

The spelling of 2143346242 in words is "two billion, one hundred forty-three million, three hundred forty-six thousand, two hundred forty-two".