400445501441 has 4 divisors (see below), whose sum is σ = 400446816000. Its totient is φ = 400444186884.

The previous prime is 400445501383. The next prime is 400445501453. The reversal of 400445501441 is 144105544004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 400445501441 - 2⁶ = 400445501377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400445501398 and 400445501407.

It is not an unprimeable number, because it can be changed into a prime (400445503441) 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, 62120 + ... + 897078.

It is an arithmetic number, because the mean of its divisors is an integer number (100111704000).

Almost surely, 2^400445501441 is an apocalyptic number.

It is an amenable number.

400445501441 is a deficient number, since it is larger than the sum of its proper divisors (1314559).

400445501441 is an equidigital number, since it uses as much as digits as its factorization.

400445501441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314558.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 400445501441 in words is "four hundred billion, four hundred forty-five million, five hundred one thousand, four hundred forty-one".