406980001 has 4 divisors (see below), whose sum is σ = 411552900. Its totient is φ = 402407104.

The previous prime is 406979933. The next prime is 406980011. The reversal of 406980001 is 100089604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116618401 + 290361600 = 10799^2 + 17040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406980001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406980011) 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, 2286316 + ... + 2286493.

It is an arithmetic number, because the mean of its divisors is an integer number (102888225).

Almost surely, 2^406980001 is an apocalyptic number.

It is an amenable number.

406980001 is a deficient number, since it is larger than the sum of its proper divisors (4572899).

406980001 is an equidigital number, since it uses as much as digits as its factorization.

406980001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572898.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 406980001 is about 20173.7453389300. The cubic root of 406980001 is about 741.0673670557.

The spelling of 406980001 in words is "four hundred six million, nine hundred eighty thousand, one".