2043421434 has 24 divisors (see below), whose sum is σ = 4433337792. Its totient is φ = 680229000.

The previous prime is 2043421433. The next prime is 2043421469. The reversal of 2043421434 is 4341243402.

It is a happy number.

2043421434 is a `hidden beast` number, since 204 + 3 + 4 + 21 + 434 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2043421398 and 2043421407.

It is not an unprimeable number, because it can be changed into a prime (2043421433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62064 + ... + 89099.

It is an arithmetic number, because the mean of its divisors is an integer number (184722408).

Almost surely, 2^2043421434 is an apocalyptic number.

2043421434 is an abundant number, since it is smaller than the sum of its proper divisors (2389916358).

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

2043421434 is a wasteful number, since it uses less digits than its factorization.

2043421434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151922 (or 151919 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2043421434 is about 45204.2192057334. The cubic root of 2043421434 is about 1268.9737786294.

Adding to 2043421434 its reverse (4341243402), we get a palindrome (6384664836).

The spelling of 2043421434 in words is "two billion, forty-three million, four hundred twenty-one thousand, four hundred thirty-four".