401562401 has 2 divisors, whose sum is σ = 401562402. Its totient is φ = 401562400.

The previous prime is 401562379. The next prime is 401562419. The reversal of 401562401 is 104265104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365574400 + 35988001 = 19120^2 + 5999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401562401 is a prime.

It is a super-2 number, since 2×401562401² = 322504723793769602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401562461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200781200 + 200781201.

It is an arithmetic number, because the mean of its divisors is an integer number (200781201).

Almost surely, 2^401562401 is an apocalyptic number.

It is an amenable number.

401562401 is a deficient number, since it is larger than the sum of its proper divisors (1).

401562401 is an equidigital number, since it uses as much as digits as its factorization.

401562401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 401562401 is about 20039.0219571715. The cubic root of 401562401 is about 737.7643758091.

The spelling of 401562401 in words is "four hundred one million, five hundred sixty-two thousand, four hundred one".