401310289 has 2 divisors, whose sum is σ = 401310290. Its totient is φ = 401310288.

The previous prime is 401310281. The next prime is 401310311. The reversal of 401310289 is 982013104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384826689 + 16483600 = 19617^2 + 4060^2 .

It is a cyclic number.

It is not a de Polignac number, because 401310289 - 2³ = 401310281 is a prime.

It is a super-2 number, since 2×401310289² = 322099896114527042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401310281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200655144 + 200655145.

It is an arithmetic number, because the mean of its divisors is an integer number (200655145).

Almost surely, 2^401310289 is an apocalyptic number.

It is an amenable number.

401310289 is a deficient number, since it is larger than the sum of its proper divisors (1).

401310289 is an equidigital number, since it uses as much as digits as its factorization.

401310289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 401310289 is about 20032.7304429526. The cubic root of 401310289 is about 737.6099471818.

The spelling of 401310289 in words is "four hundred one million, three hundred ten thousand, two hundred eighty-nine".