2142430693 has 4 divisors (see below), whose sum is σ = 2307233068. Its totient is φ = 1977628320.

The previous prime is 2142430669. The next prime is 2142430727. The reversal of 2142430693 is 3960342412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1327727844 + 814702849 = 36438^2 + 28543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142430693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142430663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82401168 + ... + 82401193.

It is an arithmetic number, because the mean of its divisors is an integer number (576808267).

Almost surely, 2^2142430693 is an apocalyptic number.

It is an amenable number.

2142430693 is a deficient number, since it is larger than the sum of its proper divisors (164802375).

2142430693 is a wasteful number, since it uses less digits than its factorization.

2142430693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164802374.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2142430693 is about 46286.3985745273. The cubic root of 2142430693 is about 1289.1464603913.

The spelling of 2142430693 in words is "two billion, one hundred forty-two million, four hundred thirty thousand, six hundred ninety-three".