405334001 has 8 divisors (see below), whose sum is σ = 418409640. Its totient is φ = 392370048.

The previous prime is 405333989. The next prime is 405334067. The reversal of 405334001 is 100433504.

It can be written as a sum of positive squares in 4 ways, for example, as 208773601 + 196560400 = 14449^2 + 14020^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 405334001 - 2¹⁴ = 405317617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405334801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20516 + ... + 35093.

It is an arithmetic number, because the mean of its divisors is an integer number (52301205).

Almost surely, 2^405334001 is an apocalyptic number.

It is an amenable number.

405334001 is a deficient number, since it is larger than the sum of its proper divisors (13075639).

405334001 is a wasteful number, since it uses less digits than its factorization.

405334001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55843.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 405334001 is about 20132.9084088713. The cubic root of 405334001 is about 740.0669534015.

Adding to 405334001 its reverse (100433504), we get a palindrome (505767505).

The spelling of 405334001 in words is "four hundred five million, three hundred thirty-four thousand, one".