2402042243 has 4 divisors (see below), whose sum is σ = 2423299368. Its totient is φ = 2380785120.

The previous prime is 2402042231. The next prime is 2402042249. The reversal of 2402042243 is 3422402042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3422402042 = 2 ⋅1711201021.

It is a cyclic number.

It is not a de Polignac number, because 2402042243 - 2⁶ = 2402042179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2402042249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10628393 + ... + 10628618.

It is an arithmetic number, because the mean of its divisors is an integer number (605824842).

Almost surely, 2^2402042243 is an apocalyptic number.

2402042243 is a deficient number, since it is larger than the sum of its proper divisors (21257125).

2402042243 is a wasteful number, since it uses less digits than its factorization.

2402042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21257124.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2402042243 is about 49010.6339787602. The cubic root of 2402042243 is about 1339.2455549299.

Adding to 2402042243 its reverse (3422402042), we get a palindrome (5824444285).

The spelling of 2402042243 in words is "two billion, four hundred two million, forty-two thousand, two hundred forty-three".