2402342989 has 4 divisors (see below), whose sum is σ = 2414790556. Its totient is φ = 2389895424.

The previous prime is 2402342951. The next prime is 2402343011. The reversal of 2402342989 is 9892432042.

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 209294089 + 2193048900 = 14467^2 + 46830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402342989 - 2²⁵ = 2368788557 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 (2402342909) 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, 6223494 + ... + 6223879.

It is an arithmetic number, because the mean of its divisors is an integer number (603697639).

Almost surely, 2^2402342989 is an apocalyptic number.

It is an amenable number.

2402342989 is a deficient number, since it is larger than the sum of its proper divisors (12447567).

2402342989 is a wasteful number, since it uses less digits than its factorization.

2402342989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447566.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 2402342989 is about 49013.7020536095. The cubic root of 2402342989 is about 1339.3014456948.

The spelling of 2402342989 in words is "two billion, four hundred two million, three hundred forty-two thousand, nine hundred eighty-nine".