545056386 has 64 divisors (see below), whose sum is σ = 1265601792. Its totient is φ = 153280512.

The previous prime is 545056373. The next prime is 545056409. The reversal of 545056386 is 683650545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1372740 + ... + 1373136.

It is an arithmetic number, because the mean of its divisors is an integer number (19775028).

Almost surely, 2^545056386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545056386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632800896).

545056386 is an abundant number, since it is smaller than the sum of its proper divisors (720545406).

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

545056386 is a wasteful number, since it uses less digits than its factorization.

545056386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 545056386 is about 23346.4426840579. The cubic root of 545056386 is about 816.8590859844.

The spelling of 545056386 in words is "five hundred forty-five million, fifty-six thousand, three hundred eighty-six".