2000406 has 16 divisors (see below), whose sum is σ = 4041648. Its totient is φ = 660000.

The previous prime is 2000393. The next prime is 2000413. The reversal of 2000406 is 6040002.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2000391 and 2000400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (252603).

2^2000406 is an apocalyptic number.

2000406 is an abundant number, since it is smaller than the sum of its proper divisors (2041242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2000406 is a wasteful number, since it uses less digits than its factorization.

2000406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2000406 is about 1414.3570977656. The cubic root of 2000406 is about 126.0006298784. Note that the first 3 decimals are identical.

Adding to 2000406 its reverse (6040002), we get a palindrome (8040408).

The spelling of 2000406 in words is "two million, four hundred six", and thus it is an aban number.