401794300909 has 4 divisors (see below), whose sum is σ = 425429259804. Its totient is φ = 378159342016.

The previous prime is 401794300907. The next prime is 401794300939. The reversal of 401794300909 is 909003497104.

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 343099548009 + 58694752900 = 585747^2 + 242270^2 .

It is a cyclic number.

It is not a de Polignac number, because 401794300909 - 2¹ = 401794300907 is a prime.

It is a super-2 number, since 2×401794300909² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401794300907) 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, 11817479422 + ... + 11817479455.

It is an arithmetic number, because the mean of its divisors is an integer number (106357314951).

Almost surely, 2^401794300909 is an apocalyptic number.

It is an amenable number.

401794300909 is a deficient number, since it is larger than the sum of its proper divisors (23634958895).

401794300909 is a wasteful number, since it uses less digits than its factorization.

401794300909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23634958894.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 401794300909 in words is "four hundred one billion, seven hundred ninety-four million, three hundred thousand, nine hundred nine".