2643456434 has 24 divisors (see below), whose sum is σ = 4212750528. Its totient is φ = 1243819800.

The previous prime is 2643456419. The next prime is 2643456443. The reversal of 2643456434 is 4346543462.

It is a junction number, because it is equal to n+sod(n) for n = 2643456391 and 2643456400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96899 + ... + 121145.

It is an arithmetic number, because the mean of its divisors is an integer number (175531272).

Almost surely, 2^2643456434 is an apocalyptic number.

2643456434 is a deficient number, since it is larger than the sum of its proper divisors (1569294094).

2643456434 is a wasteful number, since it uses less digits than its factorization.

2643456434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24438 (or 24419 counting only the distinct ones).

The product of its digits is 829440, while the sum is 41.

The square root of 2643456434 is about 51414.5546902820. The cubic root of 2643456434 is about 1382.6875501776.

Adding to 2643456434 its reverse (4346543462), we get a palindrome (6989999896).

The spelling of 2643456434 in words is "two billion, six hundred forty-three million, four hundred fifty-six thousand, four hundred thirty-four".