401342401 has 4 divisors (see below), whose sum is σ = 401388372. Its totient is φ = 401296432.

The previous prime is 401342371. The next prime is 401342413. The reversal of 401342401 is 104243104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26532801 + 374809600 = 5151^2 + 19360^2 .

It is a cyclic number.

It is not a de Polignac number, because 401342401 - 2⁵ = 401342369 is a prime.

It is a super-2 number, since 2×401342401² = 322151445680889602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401352401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5410 + ... + 28843.

It is an arithmetic number, because the mean of its divisors is an integer number (100347093).

Almost surely, 2^401342401 is an apocalyptic number.

It is an amenable number.

401342401 is a deficient number, since it is larger than the sum of its proper divisors (45971).

401342401 is a wasteful number, since it uses less digits than its factorization.

401342401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45970.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 401342401 is about 20033.5319152665. The cubic root of 401342401 is about 737.6296206527.

Adding to 401342401 its reverse (104243104), we get a palindrome (505585505).

The spelling of 401342401 in words is "four hundred one million, three hundred forty-two thousand, four hundred one".