401343321 has 8 divisors (see below), whose sum is σ = 536367744. Its totient is φ = 266940560.

The previous prime is 401343317. The next prime is 401343337. The reversal of 401343321 is 123343104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401343321 - 2² = 401343317 is a prime.

It is a super-2 number, since 2×401343321² = 322152922622618082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401343121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153906 + ... + 156491.

It is an arithmetic number, because the mean of its divisors is an integer number (67045968).

Almost surely, 2^401343321 is an apocalyptic number.

It is an amenable number.

401343321 is a deficient number, since it is larger than the sum of its proper divisors (135024423).

401343321 is a wasteful number, since it uses less digits than its factorization.

401343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310831.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 401343321 is about 20033.5548767561. The cubic root of 401343321 is about 737.6301842768.

Adding to 401343321 its reverse (123343104), we get a palindrome (524686425).

The spelling of 401343321 in words is "four hundred one million, three hundred forty-three thousand, three hundred twenty-one".