4001641393 has 4 divisors (see below), whose sum is σ = 4030430320. Its totient is φ = 3972852468.

The previous prime is 4001641337. The next prime is 4001641403. The reversal of 4001641393 is 3931461004.

4001641393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001641393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001641093) 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, 14394255 + ... + 14394532.

It is an arithmetic number, because the mean of its divisors is an integer number (1007607580).

Almost surely, 2^4001641393 is an apocalyptic number.

It is an amenable number.

4001641393 is a deficient number, since it is larger than the sum of its proper divisors (28788927).

4001641393 is a wasteful number, since it uses less digits than its factorization.

4001641393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28788926.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 4001641393 is about 63258.5282234736. The cubic root of 4001641393 is about 1587.6181513567.

The spelling of 4001641393 in words is "four billion, one million, six hundred forty-one thousand, three hundred ninety-three".