544450440 has 32 divisors (see below), whose sum is σ = 1633351680. Its totient is φ = 145186752.

The previous prime is 544450421. The next prime is 544450441. The reversal of 544450440 is 44054445.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 544450398 and 544450407.

It is not an unprimeable number, because it can be changed into a prime (544450441) 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, 2268424 + ... + 2268663.

It is an arithmetic number, because the mean of its divisors is an integer number (51042240).

Almost surely, 2^544450440 is an apocalyptic number.

It is an amenable number.

544450440 is an abundant number, since it is smaller than the sum of its proper divisors (1088901240).

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

544450440 is a wasteful number, since it uses less digits than its factorization.

544450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537101 (or 4537097 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 544450440 is about 23333.4618091701. The cubic root of 544450440 is about 816.5562695883.

The spelling of 544450440 in words is "five hundred forty-four million, four hundred fifty thousand, four hundred forty".