401374443401 has 2 divisors, whose sum is σ = 401374443402. Its totient is φ = 401374443400.

The previous prime is 401374443389. The next prime is 401374443473. The reversal of 401374443401 is 104344473104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383502764176 + 17871679225 = 619276^2 + 133685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401374443401 is a prime.

It is a super-2 number, since 2×401374443401² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401374449401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200687221700 + 200687221701.

It is an arithmetic number, because the mean of its divisors is an integer number (200687221701).

Almost surely, 2^401374443401 is an apocalyptic number.

It is an amenable number.

401374443401 is a deficient number, since it is larger than the sum of its proper divisors (1).

401374443401 is an equidigital number, since it uses as much as digits as its factorization.

401374443401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 401374443401 in words is "four hundred one billion, three hundred seventy-four million, four hundred forty-three thousand, four hundred one".