401450321 has 4 divisors (see below), whose sum is σ = 402377892. Its totient is φ = 400522752.

The previous prime is 401450293. The next prime is 401450339. The reversal of 401450321 is 123054104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43824400 + 357625921 = 6620^2 + 18911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401450321 is a prime.

It is a super-2 number, since 2×401450321² = 322324720462006082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401450293 and 401450302.

It is not an unprimeable number, because it can be changed into a prime (401450351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463136 + ... + 464001.

It is an arithmetic number, because the mean of its divisors is an integer number (100594473).

Almost surely, 2^401450321 is an apocalyptic number.

It is an amenable number.

401450321 is a deficient number, since it is larger than the sum of its proper divisors (927571).

401450321 is an equidigital number, since it uses as much as digits as its factorization.

401450321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927570.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 401450321 is about 20036.2252183389. The cubic root of 401450321 is about 737.6957303339.

The spelling of 401450321 in words is "four hundred one million, four hundred fifty thousand, three hundred twenty-one".