2340421998 has 8 divisors (see below), whose sum is σ = 4680844008. Its totient is φ = 780140664.

The previous prime is 2340421997. The next prime is 2340421999. The reversal of 2340421998 is 8991240432.

It is an interprime number because it is at equal distance from previous prime (2340421997) and next prime (2340421999).

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

2340421998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340421991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195035161 + ... + 195035172.

It is an arithmetic number, because the mean of its divisors is an integer number (585105501).

Almost surely, 2^2340421998 is an apocalyptic number.

2340421998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2340421998 is a wasteful number, since it uses less digits than its factorization.

2340421998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390070338.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2340421998 is about 48377.9081606470. The cubic root of 2340421998 is about 1327.6941972452.

The spelling of 2340421998 in words is "two billion, three hundred forty million, four hundred twenty-one thousand, nine hundred ninety-eight".