2443420989 has 12 divisors (see below), whose sum is σ = 3537358656. Its totient is φ = 1625267592.

The previous prime is 2443420951. The next prime is 2443421003. The reversal of 2443420989 is 9890243442.

It is a happy number.

2443420989 is a `hidden beast` number, since 2 + 4 + 434 + 209 + 8 + 9 = 666.

2443420989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2443420989 - 2¹¹ = 2443418941 is a prime.

It is a super-2 number, since 2×2443420989² = 11940612258971476242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443420289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302437 + ... + 310410.

It is an arithmetic number, because the mean of its divisors is an integer number (294779888).

Almost surely, 2^2443420989 is an apocalyptic number.

It is an amenable number.

2443420989 is a deficient number, since it is larger than the sum of its proper divisors (1093937667).

2443420989 is a wasteful number, since it uses less digits than its factorization.

2443420989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613296 (or 613293 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 2443420989 is about 49430.9719609073. The cubic root of 2443420989 is about 1346.8919793073.

The spelling of 2443420989 in words is "two billion, four hundred forty-three million, four hundred twenty thousand, nine hundred eighty-nine".