393842001 has 16 divisors (see below), whose sum is σ = 601094144. Its totient is φ = 224694864.

The previous prime is 393841979. The next prime is 393842083. The reversal of 393842001 is 100248393.

It is not a de Polignac number, because 393842001 - 2⁵ = 393841969 is a prime.

It is a super-2 number, since 2×393842001² = 310223043503368002, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 393842001.

It is not an unprimeable number, because it can be changed into a prime (393842401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081 + ... + 28086.

It is an arithmetic number, because the mean of its divisors is an integer number (37568384).

Almost surely, 2^393842001 is an apocalyptic number.

It is an amenable number.

393842001 is a deficient number, since it is larger than the sum of its proper divisors (207252143).

393842001 is a wasteful number, since it uses less digits than its factorization.

393842001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 393842001 is about 19845.4529048848. The cubic root of 393842001 is about 733.0056852885.

The spelling of 393842001 in words is "three hundred ninety-three million, eight hundred forty-two thousand, one".