401321332 has 6 divisors (see below), whose sum is σ = 702312338. Its totient is φ = 200660664.

The previous prime is 401321317. The next prime is 401321399. The reversal of 401321332 is 233123104.

It can be written as a sum of positive squares in only one way, i.e., 334670436 + 66650896 = 18294^2 + 8164^2 .

It is a super-2 number, since 2×401321332² = 322117623036508448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 50165163 + ... + 50165170.

Almost surely, 2^401321332 is an apocalyptic number.

It is an amenable number.

401321332 is a deficient number, since it is larger than the sum of its proper divisors (300991006).

401321332 is a wasteful number, since it uses less digits than its factorization.

401321332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100330337 (or 100330335 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 401321332 is about 20033.0060649918. The cubic root of 401321332 is about 737.6167128128.

Adding to 401321332 its reverse (233123104), we get a palindrome (634444436).

The spelling of 401321332 in words is "four hundred one million, three hundred twenty-one thousand, three hundred thirty-two".