545439744 has 180 divisors, whose sum is σ = 1645951944. Its totient is φ = 180486144.

The previous prime is 545439701. The next prime is 545439751. The reversal of 545439744 is 447934545.

545439744 is a `hidden beast` number, since 545 + 4 + 39 + 74 + 4 = 666.

Its product of digits (1209600) is a multiple of the sum of its prime factors (180).

It is a self number, because there is not a number n which added to its sum of digits gives 545439744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3981244 + ... + 3981380.

Almost surely, 2^545439744 is an apocalyptic number.

545439744 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545439744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822975972).

545439744 is an abundant number, since it is smaller than the sum of its proper divisors (1100512200).

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

545439744 is an frugal number, since it uses more digits than its factorization.

545439744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 142 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 545439744 is about 23354.6514424857. The cubic root of 545439744 is about 817.0505500150.

The spelling of 545439744 in words is "five hundred forty-five million, four hundred thirty-nine thousand, seven hundred forty-four".