408456001 has 4 divisors (see below), whose sum is σ = 416162772. Its totient is φ = 400749232.

The previous prime is 408455959. The next prime is 408456017. The reversal of 408456001 is 100654804.

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 193071025 + 215384976 = 13895^2 + 14676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408456001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408456101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3853306 + ... + 3853411.

It is an arithmetic number, because the mean of its divisors is an integer number (104040693).

Almost surely, 2^408456001 is an apocalyptic number.

It is an amenable number.

408456001 is a deficient number, since it is larger than the sum of its proper divisors (7706771).

408456001 is an equidigital number, since it uses as much as digits as its factorization.

408456001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706770.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 408456001 is about 20210.2944313041. The cubic root of 408456001 is about 741.9621659569.

The spelling of 408456001 in words is "four hundred eight million, four hundred fifty-six thousand, one".