400701361 has 2 divisors, whose sum is σ = 400701362. Its totient is φ = 400701360.

The previous prime is 400701347. The next prime is 400701401. The reversal of 400701361 is 163107004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371756961 + 28944400 = 19281^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 400701361 - 2⁹ = 400700849 is a prime.

It is not a weakly prime, because it can be changed into another prime (400701761) 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 as a sum of consecutive naturals, namely, 200350680 + 200350681.

It is an arithmetic number, because the mean of its divisors is an integer number (200350681).

Almost surely, 2^400701361 is an apocalyptic number.

It is an amenable number.

400701361 is a deficient number, since it is larger than the sum of its proper divisors (1).

400701361 is an equidigital number, since it uses as much as digits as its factorization.

400701361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 400701361 is about 20017.5263456802. The cubic root of 400701361 is about 737.2366876143.

Adding to 400701361 its reverse (163107004), we get a palindrome (563808365).

The spelling of 400701361 in words is "four hundred million, seven hundred one thousand, three hundred sixty-one".