206402001 has 32 divisors (see below), whose sum is σ = 303421440. Its totient is φ = 124027200.

The previous prime is 206401991. The next prime is 206402011. The reversal of 206402001 is 100204602.

206402001 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 (206401991) and next prime (206402011).

It is not a de Polignac number, because 206402001 - 2⁵ = 206401969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206402011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623406 + ... + 623736.

It is an arithmetic number, because the mean of its divisors is an integer number (9481920).

Almost surely, 2^206402001 is an apocalyptic number.

It is an amenable number.

206402001 is a deficient number, since it is larger than the sum of its proper divisors (97019439).

206402001 is a wasteful number, since it uses less digits than its factorization.

206402001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 206402001 is about 14366.6976372443. The cubic root of 206402001 is about 590.9779825227.

Adding to 206402001 its reverse (100204602), we get a palindrome (306606603).

The spelling of 206402001 in words is "two hundred six million, four hundred two thousand, one".