401531324 has 6 divisors (see below), whose sum is σ = 702679824. Its totient is φ = 200765660.

The previous prime is 401531321. The next prime is 401531353. The reversal of 401531324 is 423135104.

It is a super-2 number, since 2×401531324² = 322454808306385952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401531324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401531321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50191412 + ... + 50191419.

It is an arithmetic number, because the mean of its divisors is an integer number (117113304).

Almost surely, 2^401531324 is an apocalyptic number.

It is an amenable number.

401531324 is a deficient number, since it is larger than the sum of its proper divisors (301148500).

401531324 is a wasteful number, since it uses less digits than its factorization.

401531324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100382835 (or 100382833 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 401531324 is about 20038.2465300734. The cubic root of 401531324 is about 737.7453434039.

Adding to 401531324 its reverse (423135104), we get a palindrome (824666428).

The spelling of 401531324 in words is "four hundred one million, five hundred thirty-one thousand, three hundred twenty-four".