4340381643 has 12 divisors (see below), whose sum is σ = 6751704960. Its totient is φ = 2671004016.

The previous prime is 4340381623. The next prime is 4340381653. The reversal of 4340381643 is 3461830434.

It is a happy number.

4340381643 is a `hidden beast` number, since 4 + 3 + 4 + 0 + 3 + 8 + 1 + 643 = 666.

It is not a de Polignac number, because 4340381643 - 2⁵ = 4340381611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4340381598 and 4340381607.

It is not an unprimeable number, because it can be changed into a prime (4340381623) 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, 18548523 + ... + 18548756.

It is an arithmetic number, because the mean of its divisors is an integer number (562642080).

Almost surely, 2^4340381643 is an apocalyptic number.

4340381643 is a deficient number, since it is larger than the sum of its proper divisors (2411323317).

4340381643 is a wasteful number, since it uses less digits than its factorization.

4340381643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37097298 (or 37097295 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4340381643 is about 65881.5728637379. The cubic root of 4340381643 is about 1631.2078621784.

The spelling of 4340381643 in words is "four billion, three hundred forty million, three hundred eighty-one thousand, six hundred forty-three".