401340453444 has 36 divisors (see below), whose sum is σ = 1159427977344. Its totient is φ = 114668700912.

The previous prime is 401340453443. The next prime is 401340453467. The reversal of 401340453444 is 444354043104.

401340453444 is a `hidden beast` number, since 40 + 1 + 3 + 40 + 4 + 534 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×401340453444² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 401340453399 and 401340453408.

It is not an unprimeable number, because it can be changed into a prime (401340453443) 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 11 ways as a sum of consecutive naturals, for example, 796310172 + ... + 796310675.

It is an arithmetic number, because the mean of its divisors is an integer number (32206332704).

Almost surely, 2^401340453444 is an apocalyptic number.

It is an amenable number.

401340453444 is an abundant number, since it is smaller than the sum of its proper divisors (758087523900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401340453444 is a wasteful number, since it uses less digits than its factorization.

401340453444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592620864 (or 1592620859 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 401340453444 its reverse (444354043104), we get a palindrome (845694496548).

The spelling of 401340453444 in words is "four hundred one billion, three hundred forty million, four hundred fifty-three thousand, four hundred forty-four".