4001006434 has 8 divisors (see below), whose sum is σ = 6317378640. Its totient is φ = 1895213556.

The previous prime is 4001006419. The next prime is 4001006437. The reversal of 4001006434 is 4346001004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4001006437) 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 3 ways as a sum of consecutive naturals, for example, 52644784 + ... + 52644859.

It is an arithmetic number, because the mean of its divisors is an integer number (789672330).

Almost surely, 2^4001006434 is an apocalyptic number.

4001006434 is a deficient number, since it is larger than the sum of its proper divisors (2316372206).

4001006434 is a wasteful number, since it uses less digits than its factorization.

4001006434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105289664.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4001006434 is about 63253.5092623326. The cubic root of 4001006434 is about 1587.5341753364.

Adding to 4001006434 its reverse (4346001004), we get a palindrome (8347007438).

The spelling of 4001006434 in words is "four billion, one million, six thousand, four hundred thirty-four".