401444454051 has 20 divisors (see below), whose sum is σ = 609852850200. Its totient is φ = 263093537376.

The previous prime is 401444454049. The next prime is 401444454053. The reversal of 401444454051 is 150454444104.

It is an interprime number because it is at equal distance from previous prime (401444454049) and next prime (401444454053).

It is not a de Polignac number, because 401444454051 - 2¹ = 401444454049 is a prime.

It is a super-2 number, since 2×401444454051² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401444453997 and 401444454015.

It is not an unprimeable number, because it can be changed into a prime (401444454053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41996106 + ... + 42005663.

It is an arithmetic number, because the mean of its divisors is an integer number (30492642510).

Almost surely, 2^401444454051 is an apocalyptic number.

401444454051 is a deficient number, since it is larger than the sum of its proper divisors (208408396149).

401444454051 is an equidigital number, since it uses as much as digits as its factorization.

401444454051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84001840 (or 84001831 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 401444454051 its reverse (150454444104), we get a palindrome (551898898155).

The spelling of 401444454051 in words is "four hundred one billion, four hundred forty-four million, four hundred fifty-four thousand, fifty-one".