401331345452 has 12 divisors (see below), whose sum is σ = 702434867736. Its totient is φ = 200635668960.

The previous prime is 401331345449. The next prime is 401331345469. The reversal of 401331345452 is 254543133104.

It is a super-2 number, since 2×401331345452² (a number of 24 digits) contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 7470833 + ... + 7524360.

It is an arithmetic number, because the mean of its divisors is an integer number (58536238978).

Almost surely, 2^401331345452 is an apocalyptic number.

It is an amenable number.

401331345452 is a deficient number, since it is larger than the sum of its proper divisors (301103522284).

401331345452 is a wasteful number, since it uses less digits than its factorization.

401331345452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001888 (or 15001886 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 401331345452 its reverse (254543133104), we get a palindrome (655874478556).

The spelling of 401331345452 in words is "four hundred one billion, three hundred thirty-one million, three hundred forty-five thousand, four hundred fifty-two".