320440254354 has 48 divisors (see below), whose sum is σ = 758236063104. Its totient is φ = 96996463200.

The previous prime is 320440254311. The next prime is 320440254361. The reversal of 320440254354 is 453452044023.

320440254354 is a `hidden beast` number, since 3 + 20 + 4 + 40 + 2 + 543 + 54 = 666.

It is a super-2 number, since 2×320440254354² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707869 + ... + 1068624.

It is an arithmetic number, because the mean of its divisors is an integer number (15796584648).

Almost surely, 2^320440254354 is an apocalyptic number.

320440254354 is an abundant number, since it is smaller than the sum of its proper divisors (437795808750).

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

320440254354 is a wasteful number, since it uses less digits than its factorization.

320440254354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777423 (or 1777420 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 320440254354 its reverse (453452044023), we get a palindrome (773892298377).

The spelling of 320440254354 in words is "three hundred twenty billion, four hundred forty million, two hundred fifty-four thousand, three hundred fifty-four".