409000801 has 4 divisors (see below), whose sum is σ = 446182704. Its totient is φ = 371818900.

The previous prime is 409000771. The next prime is 409000811. The reversal of 409000801 is 108000904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409000801 - 2⁵ = 409000769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409000811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18590935 + ... + 18590956.

It is an arithmetic number, because the mean of its divisors is an integer number (111545676).

Almost surely, 2^409000801 is an apocalyptic number.

It is an amenable number.

409000801 is a deficient number, since it is larger than the sum of its proper divisors (37181903).

409000801 is a wasteful number, since it uses less digits than its factorization.

409000801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37181902.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 409000801 is about 20223.7682195975. The cubic root of 409000801 is about 742.2918966199.

The spelling of 409000801 in words is "four hundred nine million, eight hundred one", and thus it is an aban number.