545385400 has 48 divisors (see below), whose sum is σ = 1449170640. Its totient is φ = 186988800.

The previous prime is 545385389. The next prime is 545385413. The reversal of 545385400 is 4583545.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 193381 + ... + 196180.

It is an arithmetic number, because the mean of its divisors is an integer number (30191055).

Almost surely, 2^545385400 is an apocalyptic number.

545385400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545385400 is an abundant number, since it is smaller than the sum of its proper divisors (903785240).

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

545385400 is a wasteful number, since it uses less digits than its factorization.

545385400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389584 (or 389575 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 545385400 is about 23353.4879621867. The cubic root of 545385400 is about 817.0234139471.

The spelling of 545385400 in words is "five hundred forty-five million, three hundred eighty-five thousand, four hundred".