545023994 has 8 divisors (see below), whose sum is σ = 817635060. Its totient is φ = 272478976.

The previous prime is 545023991. The next prime is 545024021. The reversal of 545023994 is 499320545.

It can be written as a sum of positive squares in 2 ways, for example, as 544989025 + 34969 = 23345^2 + 187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545023991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23972 + ... + 40800.

Almost surely, 2^545023994 is an apocalyptic number.

545023994 is a deficient number, since it is larger than the sum of its proper divisors (272611066).

545023994 is a wasteful number, since it uses less digits than its factorization.

545023994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33024.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 545023994 is about 23345.7489492199. The cubic root of 545023994 is about 816.8429040355.

The spelling of 545023994 in words is "five hundred forty-five million, twenty-three thousand, nine hundred ninety-four".