320244400454 has 16 divisors (see below), whose sum is σ = 528933830976. Its totient is φ = 144205209000.

The previous prime is 320244400447. The next prime is 320244400481. The reversal of 320244400454 is 454004442023.

It is a super-2 number, since 2×320244400454² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320244400454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68018972 + ... + 68023679.

It is an arithmetic number, because the mean of its divisors is an integer number (33058364436).

Almost surely, 2^320244400454 is an apocalyptic number.

320244400454 is a deficient number, since it is larger than the sum of its proper divisors (208689430522).

320244400454 is a wasteful number, since it uses less digits than its factorization.

320244400454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136042771.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 320244400454 its reverse (454004442023), we get a palindrome (774248842477).

The spelling of 320244400454 in words is "three hundred twenty billion, two hundred forty-four million, four hundred thousand, four hundred fifty-four".