545384448 has 192 divisors, whose sum is σ = 1847664000. Its totient is φ = 155713536.

The previous prime is 545384447. The next prime is 545384449. The reversal of 545384448 is 844483545.

It is an interprime number because it is at equal distance from previous prime (545384447) and next prime (545384449).

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×545384448² = 594888392240529408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545384447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386368 + ... + 387776.

It is an arithmetic number, because the mean of its divisors is an integer number (9623250).

Almost surely, 2^545384448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545384448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923832000).

545384448 is an abundant number, since it is smaller than the sum of its proper divisors (1302279552).

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

545384448 is a wasteful number, since it uses less digits than its factorization.

545384448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447 (or 1421 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 45.

The square root of 545384448 is about 23353.4675797835. The cubic root of 545384448 is about 817.0229385604.

The spelling of 545384448 in words is "five hundred forty-five million, three hundred eighty-four thousand, four hundred forty-eight".