401320532 has 12 divisors (see below), whose sum is σ = 702457140. Its totient is φ = 200618496.

The previous prime is 401320519. The next prime is 401320559. The reversal of 401320532 is 235023104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87534736 + 313785796 = 9356^2 + 17714^2 .

It is a super-2 number, since 2×401320532² = 322116338809526048, 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23258 + ... + 36654.

It is an arithmetic number, because the mean of its divisors is an integer number (58538095).

Almost surely, 2^401320532 is an apocalyptic number.

It is an amenable number.

401320532 is a deficient number, since it is larger than the sum of its proper divisors (301136608).

401320532 is a wasteful number, since it uses less digits than its factorization.

401320532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20890 (or 20888 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 401320532 is about 20032.9860979336. The cubic root of 401320532 is about 737.6162226870.

Adding to 401320532 its reverse (235023104), we get a palindrome (636343636).

The spelling of 401320532 in words is "four hundred one million, three hundred twenty thousand, five hundred thirty-two".