4006660426 has 8 divisors (see below), whose sum is σ = 6026732640. Its totient is φ = 1997749548.

The previous prime is 4006660423. The next prime is 4006660429. The reversal of 4006660426 is 6240666004.

4006660426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4006660423) and next prime (4006660429).

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

It is a junction number, because it is equal to n+sod(n) for n = 4006660391 and 4006660400.

It is not an unprimeable number, because it can be changed into a prime (4006660423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789436 + ... + 2790871.

It is an arithmetic number, because the mean of its divisors is an integer number (753341580).

Almost surely, 2^4006660426 is an apocalyptic number.

4006660426 is a deficient number, since it is larger than the sum of its proper divisors (2020072214).

4006660426 is a wasteful number, since it uses less digits than its factorization.

4006660426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580668.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 4006660426 is about 63298.1865932982. The cubic root of 4006660426 is about 1588.2816273349.

The spelling of 4006660426 in words is "four billion, six million, six hundred sixty thousand, four hundred twenty-six".