400758041321 has 16 divisors (see below), whose sum is σ = 442772367360. Its totient is φ = 359675007120.

The previous prime is 400758041311. The next prime is 400758041323. The reversal of 400758041321 is 123140857004.

It is a de Polignac number, because none of the positive numbers 2^k-400758041321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400758041323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10707386 + ... + 10744748.

It is an arithmetic number, because the mean of its divisors is an integer number (27673272960).

Almost surely, 2^400758041321 is an apocalyptic number.

It is an amenable number.

400758041321 is a deficient number, since it is larger than the sum of its proper divisors (42014326039).

400758041321 is a wasteful number, since it uses less digits than its factorization.

400758041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49796.

The product of its (nonzero) digits is 26880, while the sum is 35.

Adding to 400758041321 its reverse (123140857004), we get a palindrome (523898898325).

The spelling of 400758041321 in words is "four hundred billion, seven hundred fifty-eight million, forty-one thousand, three hundred twenty-one".