320400041409 has 48 divisors (see below), whose sum is σ = 553222635264. Its totient is φ = 174709180800.

The previous prime is 320400041407. The next prime is 320400041411. The reversal of 320400041409 is 904140004023.

It is an interprime number because it is at equal distance from previous prime (320400041407) and next prime (320400041411).

It is not a de Polignac number, because 320400041409 - 2¹ = 320400041407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320400041407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347419 + ... + 872639.

It is an arithmetic number, because the mean of its divisors is an integer number (11525471568).

Almost surely, 2^320400041409 is an apocalyptic number.

It is an amenable number.

320400041409 is a deficient number, since it is larger than the sum of its proper divisors (232822593855).

320400041409 is a wasteful number, since it uses less digits than its factorization.

320400041409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525678 (or 525675 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 320400041409 in words is "three hundred twenty billion, four hundred million, forty-one thousand, four hundred nine".