454440144 has 40 divisors (see below), whose sum is σ = 1175828512. Its totient is φ = 151240320.

The previous prime is 454440143. The next prime is 454440149. The reversal of 454440144 is 441044454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24567 + ... + 38889.

Almost surely, 2^454440144 is an apocalyptic number.

It is an amenable number.

454440144 is an abundant number, since it is smaller than the sum of its proper divisors (721388368).

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

454440144 is a wasteful number, since it uses less digits than its factorization.

454440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995 (or 14989 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 454440144 is about 21317.6017412841. The cubic root of 454440144 is about 768.8215763086.

Adding to 454440144 its reverse (441044454), we get a palindrome (895484598).

The spelling of 454440144 in words is "four hundred fifty-four million, four hundred forty thousand, one hundred forty-four".