2421004343 has 4 divisors (see below), whose sum is σ = 2421498288. Its totient is φ = 2420510400.

The previous prime is 2421004337. The next prime is 2421004351. The reversal of 2421004343 is 3434001242.

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

It is a cyclic number.

It is not a de Polignac number, because 2421004343 - 2¹⁸ = 2420742199 is a prime.

It is a super-2 number, since 2×2421004343² = 11722524057649723298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421004373) 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, 239546 + ... + 249447.

It is an arithmetic number, because the mean of its divisors is an integer number (605374572).

Almost surely, 2^2421004343 is an apocalyptic number.

2421004343 is a deficient number, since it is larger than the sum of its proper divisors (493945).

2421004343 is an equidigital number, since it uses as much as digits as its factorization.

2421004343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493944.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2421004343 is about 49203.7025334476. The cubic root of 2421004343 is about 1342.7603940132.

Adding to 2421004343 its reverse (3434001242), we get a palindrome (5855005585).

The spelling of 2421004343 in words is "two billion, four hundred twenty-one million, four thousand, three hundred forty-three".