2402143442 has 4 divisors (see below), whose sum is σ = 3603215166. Its totient is φ = 1201071720.

The previous prime is 2402143439. The next prime is 2402143451. The reversal of 2402143442 is 2443412042.

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 only one way, i.e., 2367698281 + 34445161 = 48659^2 + 5869^2 .

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 as a sum of consecutive naturals, namely, 600535859 + ... + 600535862.

Almost surely, 2^2402143442 is an apocalyptic number.

2402143442 is a deficient number, since it is larger than the sum of its proper divisors (1201071724).

2402143442 is a wasteful number, since it uses less digits than its factorization.

2402143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201071723.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 2402143442 is about 49011.6663866880. Note that the first 3 decimals coincide. The cubic root of 2402143442 is about 1339.2643623160.

Adding to 2402143442 its reverse (2443412042), we get a palindrome (4845555484).

The spelling of 2402143442 in words is "two billion, four hundred two million, one hundred forty-three thousand, four hundred forty-two".